Open games by popularity
The term open is used for games when most parts of the source code are publicly available.
Many of these games are published under the GNU General Public License (GPL) but also a wide variety of different licenses are used as well, some are more popular than others and some are custom ones. A game can have more then one license, one for the engine and another one for artwork or music. A game who's artwork is not published under an open source license is still eligible for this tag if the game code is.
FreeCol
4X, Strategy, Turn-based FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation. You start with...
Oolite
Simulation, Economy, Flying Oolite (Object Oriented Elite) is a space sim game, inspired by Elite, powered by Objective-C and OpenGL, and designed as a small game that is easy for users to pick up, modify...
Pioneer
Simulation Pioneer is a space adventure game set in the milkyway galaxy at the turn of the 31st century. The game is open-ended, and you are free to explore the millions of star systems in...
FLARE
Action, Role-playing Free Libre Action Roleplaying Engine is a simple game engine built to handle a very specific kind of game: single-player 2D action RPGs. Flare is not a reimplementation of an...
Simutrans
Simulation, Economy Simutrans is a freeware and open-source transportation simulation game. Your goal is to establish a successful transport company. Transport passengers, mail and goods by rail,...
Speed Dreams
Racing, Simulation, Driving Speed Dreams is a fork of the famous open racing car simulator TORCS, aiming to implement exciting new features, cars, tracks and AI opponents to make a more enjoyable game for...
Stendhal
Role-playing, MMO Are you looking for adventure? Want to fight for riches? Develop yourself and your social standing? Meet new people? Do you want to be part of a brave new world? Stendhal is a...
Jazz Jackrabbit
Arcade, Platform Jazz Jackrabbit is a PC platform game. Produced by Epic Games (then Epic MegaGames), it was first released in 1994. The fast-paced, colourful gameplay proved popular, and the game...
Danger from the Deep
Simulation, Navigate Danger from the Deep (known as dangerdeep or DftD) is a free (as in free speech), Open Source World War II german submarine simulator. The program and source code is available...
Harris
Simulation, Strategy, Turn-based Harris is a strategy game based around the actions of RAF Bomber Command in the Second World War. In Harris, you take on the role of the Commander-in-Chief of Bomber Command,...
Zero-K
Strategy, Real-time, Total conversion Zero-K is a FREE, multiplatform, open-source RTS game. It aims to be dynamic, action-packed and hassle-free, full of clever strategies and constantly moving combat with games...
FlightGear
Simulation, Flying The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. Source code for the entire project is available and...
Pokemon Online
Arcade, Strategy, Turn-based Pokemon Online is the most up to date Pokemon Battle Simulator that allows a person to experience real time Pokemon battles against Pokemon players from all over the globe. Its...
Dink Smallwood
Adventure, Role-playing, Real-time Dink Smallwood is an adventure/role-playing game, similar to Zelda (2D top view), made by RTsoft. The game features the twisted adventure of young Dink Smallwood, a pig farmer...
SuperTuxKart
Racing, Driving SuperTuxKart is a Free 3d kart racing game; we want to make the game fun more than we want to make it realistic. You can play with up to 4 friends on one PC, racing against each...
Tales of Middle Earth
Adventure, Roguelike Tales of Middle Earth (ToME) is a fantasy adventure game, based on the works of J.R.R. Tolkien. It is a game that emphasizes intricate, challenging, and varied gameplay over...
Hedgewars
Strategy, Turn-based Hedgewars, it's a Blast! This is the funniest and most addictive game you'll ever play - hilarious fun that you can enjoy anywhere, anytime. Hedgewars is a turn based strategy...
Lips of Suna
Role-playing, MMO Lips of Suna is an online dungeon crawl with an action RPG-like gameplay. The world is on the verge of demise as the great World Tree withers all of the sudden and chaos begins...
Atrinik
Role-playing, MMO, Roguelike Atrinik is a free open source Multiplayer Online Role Playing Game (MORPG) with 2D isometric graphics. All the content and code is released under GNU GPL.
