The Powder Toy
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powdertoy.co.uk
The Powder Toy
@powdertoy.co.uk
The Powder Toy is a free and open source particle physics sandbox game. Download it from https://powdertoy.co.uk/ or find us on Steam!
Pinned
If you want updates on the latest releases / happenings of The Powder Toy, or maybe some silly posts from time to time, you've come to the right place. Download TPT at tpt.io or install from steam at tpt.io/steam
Broke the server and caused error message overload
October 16, 2025 at 2:01 AM
I guess this doesn't work for open source games. TPT has almost 100 credited developers but is only 6-7MB.
September 15, 2025 at 1:37 PM
With Windows 10's EOL approaching, why not try something old. I can confirm the next version of TPT will mark the return of Windows XP support.
September 4, 2025 at 5:56 PM
MEGA STICKMAN RAGES.

(by the way this was made as a joke, we aren't actually adding mega stickman)
February 28, 2025 at 7:14 PM
MEGA STICKMAN
February 27, 2025 at 2:10 AM
TPT 99.3 is out! Since there were so many bugfixes this month, we decided to do another minor release. Some of the bugs are very old, like gravity wall leaks while undoing, or an infinite pressure bug in the corner. Others were new, like elements being missing in certain older saves.
February 22, 2025 at 3:20 AM
Windows users using the portable version of 99.1 will get a GAME CRASH when updating to 99.2. It is still safe to run the update. The old instance of TPT will bluescreen, and the new instance will launch. Close the old instance of TPT, and then delete the file Powder_upd.exe that it leaves behind.
February 2, 2025 at 3:35 AM
Another new minor version has been released - TPT 99.2. It fixes some newly-added bugs from TPT 99.1. That means the fps display is back in line with how it was before (no 0.00 FPS while paused), and some bugs on high refresh rate monitors were fixed.
February 2, 2025 at 12:20 AM
A new minor version of TPT, 99.1, has been released! It fixes some bugs and leftover issues from 99.0, and also some old simulation oddities. Plus, the FPS cap now only applies to the main window, no more rapidly spinning spinners and janky scrolling when you turn off the FPS cap
January 25, 2025 at 7:37 PM
Oh no, it wasn't just TikTok that was affected!
January 19, 2025 at 5:54 AM
Happy New Year! In 2024, we added features we talked about and put off since 2014. Next year, my resolution is to do the things I've put off since 2015
January 1, 2025 at 5:10 AM
A special Christmas Update* is now out! Version 99.0 is now out of beta, just launch the game to the latest version. This version adds performance improvements in certain display modes and improves the search feature.

*This update doesn't actually have Christmas content but it does still have SNOW
December 25, 2024 at 5:33 AM
A beta for 99.0 has been released! This version adds better search in the save browser, and boosts fps in Fire/Fancy displays by putting rendering into another thread. There's also now in-game credits, a new tools api for creating Lua tools, and various simulation / crash fixes. Download: tpt.io
December 18, 2024 at 2:00 AM
I see nothing wrong here. That's totally the current logo.
December 16, 2024 at 5:32 AM
If you want updates on the latest releases / happenings of The Powder Toy, or maybe some silly posts from time to time, you've come to the right place. Download TPT at tpt.io or install from steam at tpt.io/steam
December 16, 2024 at 5:18 AM
>Make account
>Don't link it anywhere
>9 followers
Hmm, are you all bots?
December 16, 2024 at 5:12 AM