Retro penguin platformer for Gameboy

Pusselspel

Open source transportation simulation game

Celeste 64: Fragments of the Mountain

Fast-paced single-player rally racing game

EDuke32 is an awesome, free homebrew game engine

PS4 Emulator

Python fitting assistant for EVE: Online

A plane flying shooter game

Open source simulation game based upon Transport Tycoon Deluxe

Viper is a launcher and updater for Northstar, and not much more than that

A free-to-play fantasy MMORPG

Othello brädspel

3D FPS approved by Uncle Sam

Tactical first person shooter with action movie elements

Traditional top-down car racing game including a level editor

Free train simulator

An FPS game.

Cute multiplayer platform game

Typing challenge featuring Tux

Mythical adventure as Tux!

Cross platform mod manager for Project Diva Mega Mix+

An RPG-like puzzle-solving dungeon-crawling game, and more!

OpenNox is a modern implementation of a Nox game engine

Amusement park simulation

Cross-platform engine for the Ultima VII games

City building game

Minigolf

Deductive Zebra Puzzle Logic Game

Cross platform, customizable graphical frontend for launching emulators