Sebastián Gioseffi
@sebagioseffi.bsky.social
Independent Game Developer y demás. Co-creator of Okhlos. Co-organizer of the Experimental Game Workshop at GDC.
Reposted by Sebastián Gioseffi
Last day to submit to the 2026 session of the Experimental Games Showcase at GDC!
No more extensions. This is it. Submit today!
www.experimentalgamesshowcase.com
No more extensions. This is it. Submit today!
www.experimentalgamesshowcase.com
October 31, 2025 at 4:27 PM
Last day to submit to the 2026 session of the Experimental Games Showcase at GDC!
No more extensions. This is it. Submit today!
www.experimentalgamesshowcase.com
No more extensions. This is it. Submit today!
www.experimentalgamesshowcase.com
Reposted by Sebastián Gioseffi
🚨 Hey, everyone! We are extending our submission deadline until Oct 31! 🚨
So there is week more to send games for consideration for the 2026 session of the Experimental Games Showcase.
Submission form and more info in our new website: www.experimentalgamesshowcase.com
So there is week more to send games for consideration for the 2026 session of the Experimental Games Showcase.
Submission form and more info in our new website: www.experimentalgamesshowcase.com
Experimental Games Showcase
SUBMIT YOUR GAME TO THE
www.experimentalgamesshowcase.com
October 25, 2025 at 3:35 AM
🚨 Hey, everyone! We are extending our submission deadline until Oct 31! 🚨
So there is week more to send games for consideration for the 2026 session of the Experimental Games Showcase.
Submission form and more info in our new website: www.experimentalgamesshowcase.com
So there is week more to send games for consideration for the 2026 session of the Experimental Games Showcase.
Submission form and more info in our new website: www.experimentalgamesshowcase.com
Reposted by Sebastián Gioseffi
📣It's LAST week to submit your games to the 2026 session!📣
Submissions for the Experimental Games Showcase at GDC are open until this Friday, October 24th. We welcome experimental creators making games of any kind. Don't miss out!
www.experimentalgamesshowcase.com
Submissions for the Experimental Games Showcase at GDC are open until this Friday, October 24th. We welcome experimental creators making games of any kind. Don't miss out!
www.experimentalgamesshowcase.com
Experimental Games Showcase
SUBMIT YOUR GAME TO THE
www.experimentalgamesshowcase.com
October 21, 2025 at 1:07 PM
📣It's LAST week to submit your games to the 2026 session!📣
Submissions for the Experimental Games Showcase at GDC are open until this Friday, October 24th. We welcome experimental creators making games of any kind. Don't miss out!
www.experimentalgamesshowcase.com
Submissions for the Experimental Games Showcase at GDC are open until this Friday, October 24th. We welcome experimental creators making games of any kind. Don't miss out!
www.experimentalgamesshowcase.com
Reposted by Sebastián Gioseffi
⚡In case you missed it, the newly rebranded Experimental Games Showcase (formerly the Experimental Gameplay Workshop) is now accepting submissions for next year!⚡
The deadline is October 24 and can be either in person or via video.
Get more info and submit here:
www.experimentalgamesshowcase.com
The deadline is October 24 and can be either in person or via video.
Get more info and submit here:
www.experimentalgamesshowcase.com
Experimental Games Showcase
SUBMIT YOUR GAME TO THE
www.experimentalgamesshowcase.com
October 7, 2025 at 1:04 PM
⚡In case you missed it, the newly rebranded Experimental Games Showcase (formerly the Experimental Gameplay Workshop) is now accepting submissions for next year!⚡
The deadline is October 24 and can be either in person or via video.
Get more info and submit here:
www.experimentalgamesshowcase.com
The deadline is October 24 and can be either in person or via video.
Get more info and submit here:
www.experimentalgamesshowcase.com
Reposted by Sebastián Gioseffi
gib W e I Rd games🥺
now taking submissions for the newly rebranded ExGS @ GDC 2026!! you get a free all access (or whatever they're gonna call it next year) badge
now taking submissions for the newly rebranded ExGS @ GDC 2026!! you get a free all access (or whatever they're gonna call it next year) badge
September 29, 2025 at 8:26 PM
gib W e I Rd games🥺
now taking submissions for the newly rebranded ExGS @ GDC 2026!! you get a free all access (or whatever they're gonna call it next year) badge
now taking submissions for the newly rebranded ExGS @ GDC 2026!! you get a free all access (or whatever they're gonna call it next year) badge
Reposted by Sebastián Gioseffi
HEY have you been working on something interesting this year? Submissions to the Experimental Games Showcase at GDC are now OPEN through October 24, 2025! Send us your weird games!
More about the session and where to submit is on our new website: www.experimentalgamesshowcase.com
More about the session and where to submit is on our new website: www.experimentalgamesshowcase.com
Experimental Games Showcase
SUBMIT YOUR GAME TO THE
www.experimentalgamesshowcase.com
September 23, 2025 at 8:15 PM
HEY have you been working on something interesting this year? Submissions to the Experimental Games Showcase at GDC are now OPEN through October 24, 2025! Send us your weird games!
More about the session and where to submit is on our new website: www.experimentalgamesshowcase.com
More about the session and where to submit is on our new website: www.experimentalgamesshowcase.com
Reposted by Sebastián Gioseffi
Submissions to the Experimental Games Showcase at GDC are now OPEN through October 24, 2025! Please send us the weird shit you're working on! More info about the session and where to submit can be found on our NEW website here www.experimentalgamesshowcase.com
Experimental Games Showcase
SUBMIT YOUR GAME TO THE
www.experimentalgamesshowcase.com
September 23, 2025 at 8:13 PM
Submissions to the Experimental Games Showcase at GDC are now OPEN through October 24, 2025! Please send us the weird shit you're working on! More info about the session and where to submit can be found on our NEW website here www.experimentalgamesshowcase.com
Reposted by Sebastián Gioseffi
applications are open for the experimental games workshop. this was always a wonderful thing to be part of and it’s worth pointing out that they also accept video presentations if you can’t attend in person!
Applications to be included in the 2026 Experimental Games Showcase at GDC are now OPEN through October 24, 2025! Please send us the weird shit you're working on!
Learn more and apply on our NEW website: www.experimentalgamesshowcase.com
Learn more and apply on our NEW website: www.experimentalgamesshowcase.com
Experimental Games Showcase
SUBMIT YOUR GAME TO THE
www.experimentalgamesshowcase.com
September 24, 2025 at 5:06 AM
applications are open for the experimental games workshop. this was always a wonderful thing to be part of and it’s worth pointing out that they also accept video presentations if you can’t attend in person!
Reposted by Sebastián Gioseffi
Applications to be included in the 2026 Experimental Games Showcase at GDC are now OPEN through October 24, 2025! Please send us the weird shit you're working on!
Learn more and apply on our NEW website: www.experimentalgamesshowcase.com
Learn more and apply on our NEW website: www.experimentalgamesshowcase.com
Experimental Games Showcase
SUBMIT YOUR GAME TO THE
www.experimentalgamesshowcase.com
September 23, 2025 at 7:58 PM
Applications to be included in the 2026 Experimental Games Showcase at GDC are now OPEN through October 24, 2025! Please send us the weird shit you're working on!
Learn more and apply on our NEW website: www.experimentalgamesshowcase.com
Learn more and apply on our NEW website: www.experimentalgamesshowcase.com
Reposted by Sebastián Gioseffi
English - This weekend, Atuel won the 'Aware Games Award' at BLON, Klaipėda's animation and game festival! 🙌✨
Español - Este finde, Atuel ganó el 'Aware Games Award' en BLON, el festival de animación y juegos de Klaipėda, Lituania! 🎉💕
Español - Este finde, Atuel ganó el 'Aware Games Award' en BLON, el festival de animación y juegos de Klaipėda, Lituania! 🎉💕
September 16, 2025 at 3:28 PM
English - This weekend, Atuel won the 'Aware Games Award' at BLON, Klaipėda's animation and game festival! 🙌✨
Español - Este finde, Atuel ganó el 'Aware Games Award' en BLON, el festival de animación y juegos de Klaipėda, Lituania! 🎉💕
Español - Este finde, Atuel ganó el 'Aware Games Award' en BLON, el festival de animación y juegos de Klaipėda, Lituania! 🎉💕
Reposted by Sebastián Gioseffi
The Games for Palestine charity bundle has collected over $50,000 in donations in just over a week! 🍉🙌✨
You can get 382 games, including Atuel, for just $8 or more!
Please help fight against genocide by donating and spreading the word with a RT so that the bundle can reach its goal! 🙏✨
You can get 382 games, including Atuel, for just $8 or more!
Please help fight against genocide by donating and spreading the word with a RT so that the bundle can reach its goal! 🙏✨
The Play for Peace: Games for Palestine charity bundle is now live! Nearly 400 games from creators all around the world, with proceeds going directly to Gaza relief efforts.
Bundle link: itch.io/b/2979/play-...
We made a launch trailer to celebrate this moment👇 Please RT.
Bundle link: itch.io/b/2979/play-...
We made a launch trailer to celebrate this moment👇 Please RT.
September 8, 2025 at 6:10 PM
The Games for Palestine charity bundle has collected over $50,000 in donations in just over a week! 🍉🙌✨
You can get 382 games, including Atuel, for just $8 or more!
Please help fight against genocide by donating and spreading the word with a RT so that the bundle can reach its goal! 🙏✨
You can get 382 games, including Atuel, for just $8 or more!
Please help fight against genocide by donating and spreading the word with a RT so that the bundle can reach its goal! 🙏✨
Reposted by Sebastián Gioseffi
Announcing "ESPecial Jobs!" My next game for the original GB/GBC/GBA/Super Gameboy and Computers! Please help me reach its public! A thread with some info about the game follows: #homebrew #gameboy #gb #gbc #retrogaming
September 11, 2025 at 8:24 PM
Announcing "ESPecial Jobs!" My next game for the original GB/GBC/GBA/Super Gameboy and Computers! Please help me reach its public! A thread with some info about the game follows: #homebrew #gameboy #gb #gbc #retrogaming
Reposted by Sebastián Gioseffi
Atuel's been out on Steam for a little over a week and our reviews are 100% positive! 🙌✨
Here's a small thread of some of my favorites.
If you enjoyed the game and have a free moment, please leave us your own review, it helps us out a ton! 🙏💕
store.steampowered.com/app/2794330/...
Here's a small thread of some of my favorites.
If you enjoyed the game and have a free moment, please leave us your own review, it helps us out a ton! 🙏💕
store.steampowered.com/app/2794330/...
July 11, 2025 at 4:08 PM
Atuel's been out on Steam for a little over a week and our reviews are 100% positive! 🙌✨
Here's a small thread of some of my favorites.
If you enjoyed the game and have a free moment, please leave us your own review, it helps us out a ton! 🙏💕
store.steampowered.com/app/2794330/...
Here's a small thread of some of my favorites.
If you enjoyed the game and have a free moment, please leave us your own review, it helps us out a ton! 🙏💕
store.steampowered.com/app/2794330/...
Reposted by Sebastián Gioseffi
We're into a new season which means I'm running this nonsense again, starting this Friday! This time though we're going to try something a little different...
itch.io/jam/factory-...
itch.io/jam/factory-...
Factory Reset Jam #4
A game jam from 2025-07-11 to 2025-07-28 hosted by JWest. 👋 Welcome! Imagine - you and your friends are out on a scuba expedition in an area far off from civilization. While snapping photos of coral a...
itch.io
July 7, 2025 at 6:37 PM
We're into a new season which means I'm running this nonsense again, starting this Friday! This time though we're going to try something a little different...
itch.io/jam/factory-...
itch.io/jam/factory-...
Reposted by Sebastián Gioseffi
Our new Toyful Games project is basically “Wordle but Wario Ware”- a daily gauntlet of micro games you can play in your browser.
give it a go at toyful.fun
give it a go at toyful.fun
June 28, 2025 at 2:48 PM
Our new Toyful Games project is basically “Wordle but Wario Ware”- a daily gauntlet of micro games you can play in your browser.
give it a go at toyful.fun
give it a go at toyful.fun
Reposted by Sebastián Gioseffi
I turned my apartment into an escape room that only my friends can play. It ended up being an important lesson in art, creativity, and companionship.
The video on YouTube breaks down the idea, process and technology, gameplay and narrative, and lessons learned.
Please share! youtu.be/ISbamI5ODNQ
Please share! youtu.be/ISbamI5ODNQ
June 30, 2025 at 5:13 PM
I turned my apartment into an escape room that only my friends can play. It ended up being an important lesson in art, creativity, and companionship.
The video on YouTube breaks down the idea, process and technology, gameplay and narrative, and lessons learned.
Please share! youtu.be/ISbamI5ODNQ
Please share! youtu.be/ISbamI5ODNQ
Reposted by Sebastián Gioseffi
Atuel is finally out!!
Thanks Pablo and Yiyo for this long (and surreal) journey.
Thanks Pablo and Yiyo for this long (and surreal) journey.
ATUEL is out NOW on Steam & Google Play for free! 🙌✨
🌄 Explore dreamlike landscapes
🦊 Shapeshift into different animals
📻 Listen to real testimonies
Atuel is an award-winning surrealist documentary game about the climate crisis.
Help us out with a RT! 🙏
store.steampowered.com/app/2794330/...
🌄 Explore dreamlike landscapes
🦊 Shapeshift into different animals
📻 Listen to real testimonies
Atuel is an award-winning surrealist documentary game about the climate crisis.
Help us out with a RT! 🙏
store.steampowered.com/app/2794330/...
June 30, 2025 at 2:10 PM
Atuel is finally out!!
Thanks Pablo and Yiyo for this long (and surreal) journey.
Thanks Pablo and Yiyo for this long (and surreal) journey.
Reposted by Sebastián Gioseffi
ATUEL is out NOW on Steam & Google Play for free! 🙌✨
🌄 Explore dreamlike landscapes
🦊 Shapeshift into different animals
📻 Listen to real testimonies
Atuel is an award-winning surrealist documentary game about the climate crisis.
Help us out with a RT! 🙏
store.steampowered.com/app/2794330/...
🌄 Explore dreamlike landscapes
🦊 Shapeshift into different animals
📻 Listen to real testimonies
Atuel is an award-winning surrealist documentary game about the climate crisis.
Help us out with a RT! 🙏
store.steampowered.com/app/2794330/...
June 30, 2025 at 9:27 AM
ATUEL is out NOW on Steam & Google Play for free! 🙌✨
🌄 Explore dreamlike landscapes
🦊 Shapeshift into different animals
📻 Listen to real testimonies
Atuel is an award-winning surrealist documentary game about the climate crisis.
Help us out with a RT! 🙏
store.steampowered.com/app/2794330/...
🌄 Explore dreamlike landscapes
🦊 Shapeshift into different animals
📻 Listen to real testimonies
Atuel is an award-winning surrealist documentary game about the climate crisis.
Help us out with a RT! 🙏
store.steampowered.com/app/2794330/...
Reposted by Sebastián Gioseffi
¡Lanzamos una gran actualización de ATUEL en itch.io! 🎉🙌✨
🗨️ ¡Localización a 7 nuevos idiomas!
🎮 ¡Soporte para más controles!
💪 ¡Mejor compatibilidad con PCs de baja gama!
¡Esta actualización gratuita también llegará a Steam y Google Play el 30 de junio!
matajuegos.itch.io/atuel
🗨️ ¡Localización a 7 nuevos idiomas!
🎮 ¡Soporte para más controles!
💪 ¡Mejor compatibilidad con PCs de baja gama!
¡Esta actualización gratuita también llegará a Steam y Google Play el 30 de junio!
matajuegos.itch.io/atuel
matajuegos.itch.io
June 19, 2025 at 10:48 AM
¡Lanzamos una gran actualización de ATUEL en itch.io! 🎉🙌✨
🗨️ ¡Localización a 7 nuevos idiomas!
🎮 ¡Soporte para más controles!
💪 ¡Mejor compatibilidad con PCs de baja gama!
¡Esta actualización gratuita también llegará a Steam y Google Play el 30 de junio!
matajuegos.itch.io/atuel
🗨️ ¡Localización a 7 nuevos idiomas!
🎮 ¡Soporte para más controles!
💪 ¡Mejor compatibilidad con PCs de baja gama!
¡Esta actualización gratuita también llegará a Steam y Google Play el 30 de junio!
matajuegos.itch.io/atuel
Reposted by Sebastián Gioseffi
We just released a huge update for ATUEL on itch.io! 🎉🙌✨
Our surrealist documentary game now includes:
🗨️ Localization to 7 new languages!
🎮 Full support for controllers!
💪 Better performance for low-end PCs!
This update is also coming to Steam & Google Play on June 30th!
matajuegos.itch.io/atuel
Our surrealist documentary game now includes:
🗨️ Localization to 7 new languages!
🎮 Full support for controllers!
💪 Better performance for low-end PCs!
This update is also coming to Steam & Google Play on June 30th!
matajuegos.itch.io/atuel
Atuel by Matajuegos, PfQ~, santiagofranz, Yiyo
Traverse a surrealist landscape inspired by the Atuel River in Argentina.
matajuegos.itch.io
June 19, 2025 at 10:48 AM
We just released a huge update for ATUEL on itch.io! 🎉🙌✨
Our surrealist documentary game now includes:
🗨️ Localization to 7 new languages!
🎮 Full support for controllers!
💪 Better performance for low-end PCs!
This update is also coming to Steam & Google Play on June 30th!
matajuegos.itch.io/atuel
Our surrealist documentary game now includes:
🗨️ Localization to 7 new languages!
🎮 Full support for controllers!
💪 Better performance for low-end PCs!
This update is also coming to Steam & Google Play on June 30th!
matajuegos.itch.io/atuel
Reposted by Sebastián Gioseffi
¡ATUEL SALDRÁ EN STEAM Y GOOGLE PLAY EL 30 DE JUNIO! 🎉🙌✨
Este relanzamiento gratuito de nuestro juego documental surrealista sobre el Río Atuel tendrá localización a 7 nuevos idiomas y soporte para controles! 💬🎮
Ya pueden darle wishlist! 🙏💕
store.steampowered.com/app/2794330/...
Este relanzamiento gratuito de nuestro juego documental surrealista sobre el Río Atuel tendrá localización a 7 nuevos idiomas y soporte para controles! 💬🎮
Ya pueden darle wishlist! 🙏💕
store.steampowered.com/app/2794330/...
Atuel on Steam
Atuel is an award-winning surrealist documentary game in which you explore beautiful, dreamlike landscapes inspired by the topography and wildlife of the Atuel River Valley in Argentina.
store.steampowered.com
June 9, 2025 at 11:03 AM
¡ATUEL SALDRÁ EN STEAM Y GOOGLE PLAY EL 30 DE JUNIO! 🎉🙌✨
Este relanzamiento gratuito de nuestro juego documental surrealista sobre el Río Atuel tendrá localización a 7 nuevos idiomas y soporte para controles! 💬🎮
Ya pueden darle wishlist! 🙏💕
store.steampowered.com/app/2794330/...
Este relanzamiento gratuito de nuestro juego documental surrealista sobre el Río Atuel tendrá localización a 7 nuevos idiomas y soporte para controles! 💬🎮
Ya pueden darle wishlist! 🙏💕
store.steampowered.com/app/2794330/...
Reposted by Sebastián Gioseffi
ATUEL IS COMING TO STEAM & GOOGLE PLAY ON JUNE 30TH! 🎉🙌✨
This free re-release of our award-winning surrealist documentary game about climate change comes with localization to 7 new languages and full controller support! 💬🎮
Wishlist it now! 🙏💕
store.steampowered.com/app/2794330/...
This free re-release of our award-winning surrealist documentary game about climate change comes with localization to 7 new languages and full controller support! 💬🎮
Wishlist it now! 🙏💕
store.steampowered.com/app/2794330/...
Atuel on Steam
Atuel is an award-winning surrealist documentary game in which you explore beautiful, dreamlike landscapes inspired by the topography and wildlife of the Atuel River Valley in Argentina.
store.steampowered.com
June 9, 2025 at 11:03 AM
ATUEL IS COMING TO STEAM & GOOGLE PLAY ON JUNE 30TH! 🎉🙌✨
This free re-release of our award-winning surrealist documentary game about climate change comes with localization to 7 new languages and full controller support! 💬🎮
Wishlist it now! 🙏💕
store.steampowered.com/app/2794330/...
This free re-release of our award-winning surrealist documentary game about climate change comes with localization to 7 new languages and full controller support! 💬🎮
Wishlist it now! 🙏💕
store.steampowered.com/app/2794330/...
Reposted by Sebastián Gioseffi
The End of Gameplay is out RIGHT NOW!
My masterpiece.
A pixel art adventure through my mind, broken by kill gameplay 🔪
love, droqen
store.steampowered.com/app/3120040/...
My masterpiece.
A pixel art adventure through my mind, broken by kill gameplay 🔪
love, droqen
store.steampowered.com/app/3120040/...
May 12, 2025 at 4:57 PM
The End of Gameplay is out RIGHT NOW!
My masterpiece.
A pixel art adventure through my mind, broken by kill gameplay 🔪
love, droqen
store.steampowered.com/app/3120040/...
My masterpiece.
A pixel art adventure through my mind, broken by kill gameplay 🔪
love, droqen
store.steampowered.com/app/3120040/...
Reposted by Sebastián Gioseffi
I made a website. It's called "one million chessboards." It has a million chessboards on it.
moving a piece moves it for everyone, instantly. No turns. You can move between boards.
that's it. Have fun!
onemillionchessboards.com
moving a piece moves it for everyone, instantly. No turns. You can move between boards.
that's it. Have fun!
onemillionchessboards.com
April 28, 2025 at 4:04 PM
I made a website. It's called "one million chessboards." It has a million chessboards on it.
moving a piece moves it for everyone, instantly. No turns. You can move between boards.
that's it. Have fun!
onemillionchessboards.com
moving a piece moves it for everyone, instantly. No turns. You can move between boards.
that's it. Have fun!
onemillionchessboards.com
Reposted by Sebastián Gioseffi
Factory Reset Jam #3 has officially begun! With an *optional* theme of...
🌱 🪴 Growth 🐣 🌷
itch.io/jam/factory-...
#factoryresetjam
🌱 🪴 Growth 🐣 🌷
itch.io/jam/factory-...
#factoryresetjam
Factory Reset Jam #3
A game jam from 2025-04-11 to 2025-04-28 hosted by JWest. Welcome! Imagine - you and your friends are hiking in a forest, a guide familiar with these woods leading the way. You take in the fresh air, ...
itch.io
April 11, 2025 at 6:36 PM
Factory Reset Jam #3 has officially begun! With an *optional* theme of...
🌱 🪴 Growth 🐣 🌷
itch.io/jam/factory-...
#factoryresetjam
🌱 🪴 Growth 🐣 🌷
itch.io/jam/factory-...
#factoryresetjam