Kornel Kisielewicz
@epyoncf.bsky.social
Professional roguelike and engine programmer. Indiepocalypse survivor. Founder of ChaosForge. Author of Jupiter Hell, DoomRL, DiabloRL and AliensRL!
Tenerife, Teide peak (3718m). Really needed some time off!
November 16, 2025 at 8:42 PM
Tenerife, Teide peak (3718m). Really needed some time off!
Jupiter Hell Classic 0.7 "Europa" update is live now, and on sale as part of #ScreamFest2025 !
Turn-based, grid-based traditional roguelike with a strong FPS lineage!
store.steampowered.com/news/app/312...
Turn-based, grid-based traditional roguelike with a strong FPS lineage!
store.steampowered.com/news/app/312...
October 27, 2025 at 5:25 PM
Jupiter Hell Classic 0.7 "Europa" update is live now, and on sale as part of #ScreamFest2025 !
Turn-based, grid-based traditional roguelike with a strong FPS lineage!
store.steampowered.com/news/app/312...
Turn-based, grid-based traditional roguelike with a strong FPS lineage!
store.steampowered.com/news/app/312...
Jupiter Hell Classic 0.6 "Callisto" update is live now!
JHC is the fastest turn-based shooter roguelike out there, check it out on Steam (demo available!)
Patch notes for 0.6: store.steampowered.com/news/app/312...
JHC is the fastest turn-based shooter roguelike out there, check it out on Steam (demo available!)
Patch notes for 0.6: store.steampowered.com/news/app/312...
September 29, 2025 at 5:11 PM
Jupiter Hell Classic 0.6 "Callisto" update is live now!
JHC is the fastest turn-based shooter roguelike out there, check it out on Steam (demo available!)
Patch notes for 0.6: store.steampowered.com/news/app/312...
JHC is the fastest turn-based shooter roguelike out there, check it out on Steam (demo available!)
Patch notes for 0.6: store.steampowered.com/news/app/312...
Jupiter Hell Classic is now Steam Deck verified!
Also, have a teaser of the upcoming 0.6 update arriving NEXT WEEK!
store.steampowered.com/news/app/312...
Also, have a teaser of the upcoming 0.6 update arriving NEXT WEEK!
store.steampowered.com/news/app/312...
September 22, 2025 at 2:39 PM
Jupiter Hell Classic is now Steam Deck verified!
Also, have a teaser of the upcoming 0.6 update arriving NEXT WEEK!
store.steampowered.com/news/app/312...
Also, have a teaser of the upcoming 0.6 update arriving NEXT WEEK!
store.steampowered.com/news/app/312...
Even if it's here for just a moment, it's always so lovely to see <3
September 13, 2025 at 8:00 AM
Even if it's here for just a moment, it's always so lovely to see <3
Some of you know of my quest to complete the Elder Scrolls back to back... I just finished Daggerfall!
A short break and I will head to Morrowind next!
(to those curious - I went with the Underking...)
A short break and I will head to Morrowind next!
(to those curious - I went with the Underking...)
August 31, 2025 at 12:48 PM
Some of you know of my quest to complete the Elder Scrolls back to back... I just finished Daggerfall!
A short break and I will head to Morrowind next!
(to those curious - I went with the Underking...)
A short break and I will head to Morrowind next!
(to those curious - I went with the Underking...)
Jupiter Hell Classic is a turn-based, fast and furious, brutal traditional roguelike of tactical combat, destructible battlefields, and endless replayability.
In Steam Early Access NOW!
store.steampowered.com/app/3126530/...
In Steam Early Access NOW!
store.steampowered.com/app/3126530/...
August 16, 2025 at 5:17 PM
Jupiter Hell Classic is a turn-based, fast and furious, brutal traditional roguelike of tactical combat, destructible battlefields, and endless replayability.
In Steam Early Access NOW!
store.steampowered.com/app/3126530/...
In Steam Early Access NOW!
store.steampowered.com/app/3126530/...
Somehow, DRL returned.
August 15, 2025 at 4:02 PM
Somehow, DRL returned.
Once again we have the honor of officially hosting this week's #TurnBasedThursday.
Board is set, pieces are in motion - #GameDev, it's your turn!
Share this thread and post your turn-based projects below with the hashtag.
TB fans, ❤️ and wishlist the games you're excited about!
Board is set, pieces are in motion - #GameDev, it's your turn!
Share this thread and post your turn-based projects below with the hashtag.
TB fans, ❤️ and wishlist the games you're excited about!
August 14, 2025 at 12:27 PM
Once again we have the honor of officially hosting this week's #TurnBasedThursday.
Board is set, pieces are in motion - #GameDev, it's your turn!
Share this thread and post your turn-based projects below with the hashtag.
TB fans, ❤️ and wishlist the games you're excited about!
Board is set, pieces are in motion - #GameDev, it's your turn!
Share this thread and post your turn-based projects below with the hashtag.
TB fans, ❤️ and wishlist the games you're excited about!
Fast-paced and turn-based - the return of a roguelike legend!
*Jupiter Hell Classic* packs procedural levels, explosive weapons, and brutal tactical combat.
Early Access starts NOW!
store.steampowered.com/app/3126530/...
*Jupiter Hell Classic* packs procedural levels, explosive weapons, and brutal tactical combat.
Early Access starts NOW!
store.steampowered.com/app/3126530/...
August 13, 2025 at 5:03 PM
Fast-paced and turn-based - the return of a roguelike legend!
*Jupiter Hell Classic* packs procedural levels, explosive weapons, and brutal tactical combat.
Early Access starts NOW!
store.steampowered.com/app/3126530/...
*Jupiter Hell Classic* packs procedural levels, explosive weapons, and brutal tactical combat.
Early Access starts NOW!
store.steampowered.com/app/3126530/...
TOMORROW - prepare to fight the forces of hell once again!
Jupiter Hell Classic launches in 24 hours!
store.steampowered.com/app/3126530/...
Jupiter Hell Classic launches in 24 hours!
store.steampowered.com/app/3126530/...
August 12, 2025 at 5:11 PM
TOMORROW - prepare to fight the forces of hell once again!
Jupiter Hell Classic launches in 24 hours!
store.steampowered.com/app/3126530/...
Jupiter Hell Classic launches in 24 hours!
store.steampowered.com/app/3126530/...
3 DAYS LEFT
until Jupiter Hell Classic enters Early Access!
The OG traditional shooter roguelike returns!
I've just sent marked the final 0.5 version as ready for testing.
♫ And we're out of beta, we're releasing on time! ♫
store.steampowered.com/app/3126530/...
until Jupiter Hell Classic enters Early Access!
The OG traditional shooter roguelike returns!
I've just sent marked the final 0.5 version as ready for testing.
♫ And we're out of beta, we're releasing on time! ♫
store.steampowered.com/app/3126530/...
August 10, 2025 at 9:07 PM
3 DAYS LEFT
until Jupiter Hell Classic enters Early Access!
The OG traditional shooter roguelike returns!
I've just sent marked the final 0.5 version as ready for testing.
♫ And we're out of beta, we're releasing on time! ♫
store.steampowered.com/app/3126530/...
until Jupiter Hell Classic enters Early Access!
The OG traditional shooter roguelike returns!
I've just sent marked the final 0.5 version as ready for testing.
♫ And we're out of beta, we're releasing on time! ♫
store.steampowered.com/app/3126530/...
This is Lua, who's patiently waiting for me to finally finish prepping and launching Jupiter Hell Classic, and have more time to spend playing with her!
August 9, 2025 at 11:56 AM
This is Lua, who's patiently waiting for me to finally finish prepping and launching Jupiter Hell Classic, and have more time to spend playing with her!
Ah it's that time again, when you get your fake feeling of being wanted...
One day I will receive my first legit key request... but today is not that day! :P
One day I will receive my first legit key request... but today is not that day! :P
August 7, 2025 at 9:35 AM
Ah it's that time again, when you get your fake feeling of being wanted...
One day I will receive my first legit key request... but today is not that day! :P
One day I will receive my first legit key request... but today is not that day! :P
Less than a week left until Jupiter Hell Classic enters Early Access!
No need to Rip and Tear as a Marine, why not let your Tech drone do the work, or as a Scout kill from stealth? :P
store.steampowered.com/app/3126530/...
No need to Rip and Tear as a Marine, why not let your Tech drone do the work, or as a Scout kill from stealth? :P
store.steampowered.com/app/3126530/...
August 6, 2025 at 9:45 PM
Less than a week left until Jupiter Hell Classic enters Early Access!
No need to Rip and Tear as a Marine, why not let your Tech drone do the work, or as a Scout kill from stealth? :P
store.steampowered.com/app/3126530/...
No need to Rip and Tear as a Marine, why not let your Tech drone do the work, or as a Scout kill from stealth? :P
store.steampowered.com/app/3126530/...
Wishlist it. Mark your calendar. Tell your crew. Share!
Jupiter Hell Classic launches into Early Access on August 13th, 17:00 GMT/1pm ET!
DRL, the venerable traditional roguelike returns - prettier, bloodier, and more fun than ever!
store.steampowered.com/app/3126530/...
Jupiter Hell Classic launches into Early Access on August 13th, 17:00 GMT/1pm ET!
DRL, the venerable traditional roguelike returns - prettier, bloodier, and more fun than ever!
store.steampowered.com/app/3126530/...
August 4, 2025 at 5:42 PM
Wishlist it. Mark your calendar. Tell your crew. Share!
Jupiter Hell Classic launches into Early Access on August 13th, 17:00 GMT/1pm ET!
DRL, the venerable traditional roguelike returns - prettier, bloodier, and more fun than ever!
store.steampowered.com/app/3126530/...
Jupiter Hell Classic launches into Early Access on August 13th, 17:00 GMT/1pm ET!
DRL, the venerable traditional roguelike returns - prettier, bloodier, and more fun than ever!
store.steampowered.com/app/3126530/...
Less than two weeks left before Jupiter Hell Classic launches on Steam in Early Access... are you ready, got your gear?
Wishlist now and share the news!
#jupiterhell #traditionalroguelike
store.steampowered.com/app/3126530/...
Wishlist now and share the news!
#jupiterhell #traditionalroguelike
store.steampowered.com/app/3126530/...
August 3, 2025 at 9:02 PM
Less than two weeks left before Jupiter Hell Classic launches on Steam in Early Access... are you ready, got your gear?
Wishlist now and share the news!
#jupiterhell #traditionalroguelike
store.steampowered.com/app/3126530/...
Wishlist now and share the news!
#jupiterhell #traditionalroguelike
store.steampowered.com/app/3126530/...
Jupiter Hell Classic, traditional roguelike and DRL expansion and total conversion, comes to Steam Early Access on August 13th!
Wishlist and mark the date <3!
store.steampowered.com/app/3126530/...
Wishlist and mark the date <3!
store.steampowered.com/app/3126530/...
July 27, 2025 at 3:42 PM
Jupiter Hell Classic, traditional roguelike and DRL expansion and total conversion, comes to Steam Early Access on August 13th!
Wishlist and mark the date <3!
store.steampowered.com/app/3126530/...
Wishlist and mark the date <3!
store.steampowered.com/app/3126530/...
It took around 33 hours, and a lot of patience, but I managed to finish Elder Scrolls (1): Arena :D
July 12, 2025 at 12:18 PM
It took around 33 hours, and a lot of patience, but I managed to finish Elder Scrolls (1): Arena :D
Yes, reading Steam reviews for your own games might be sometimes frustrating, but I read each one of them, and sometimes they make my day <3 #jupiterhell
July 10, 2025 at 8:48 AM
Yes, reading Steam reviews for your own games might be sometimes frustrating, but I read each one of them, and sometimes they make my day <3 #jupiterhell
When you arrive on Io... #jupiterhellclassic
June 26, 2025 at 12:11 PM
When you arrive on Io... #jupiterhellclassic
The new Jupiter Hell Classic DEMO is live on Steam Next Fest!
DoomRL reborn!
Turn-based tactics, permadeath, and shotguns — old-school roguelike carnage!
Play it. **Review it**. Spread it. Retweet it! <3
store.steampowered.com/app/3256910/...
#roguelike #SteamNextFest #JupiterHell
DoomRL reborn!
Turn-based tactics, permadeath, and shotguns — old-school roguelike carnage!
Play it. **Review it**. Spread it. Retweet it! <3
store.steampowered.com/app/3256910/...
#roguelike #SteamNextFest #JupiterHell
June 9, 2025 at 5:20 PM
The new Jupiter Hell Classic DEMO is live on Steam Next Fest!
DoomRL reborn!
Turn-based tactics, permadeath, and shotguns — old-school roguelike carnage!
Play it. **Review it**. Spread it. Retweet it! <3
store.steampowered.com/app/3256910/...
#roguelike #SteamNextFest #JupiterHell
DoomRL reborn!
Turn-based tactics, permadeath, and shotguns — old-school roguelike carnage!
Play it. **Review it**. Spread it. Retweet it! <3
store.steampowered.com/app/3256910/...
#roguelike #SteamNextFest #JupiterHell
Improving Jupiter Hell Classic, day by day!
April 24, 2025 at 4:07 PM
Improving Jupiter Hell Classic, day by day!
