A game made by the Celeste developers in a week(ish, closer to 2)

A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once

A version repository for beta releases of M2

Simon Tatham's Portable Puzzle Collection

Zetris - MisaMino-based Tetris AI for Puyo Puyo Tetris

Tetris Bot

Open Source version of Tile Factory

A puzzle game similar to Puyo Puyo.

A mod that allows Twitch chat to solve bombs in KTANE.

Generates KenKen® puzzles

A fanmade version of Japan's favorite puzzle fighter!

A SDL roguelike in a non-euclidean world

Create, Share, and Solve puzzles from The Witness

Tetra Offline is an offline version of Tetra Online, which was removed from Steam.

shapez is an open source base building game on Steam inspired by factorio!

A module for “Keep Talking and Nobody Explodes”, created by Timwi.

Random puzzle generator for The Witness

A randomizer for The Witness

Modding toolkit for Keep Talking and Nobody Explodes

Build and play puzzles based on the puzzle logic of The Witness

Puzzle game for Android and Windows, inspired by Jonathan Blow's "The Witness". Created using MonoGame.