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Freeciv is a Free and Open Source empire-building strategy game inspired by the history of human civilization. The game commences in prehistory and your mission is to lead your tribe from the Stone Age to the Space Age.

Xonotic is an addictive arena-style first person shooter with crisp movement and a wide array of weapons. It combines intuitive mechanics with in-your-face action to elevate your heart rate.

Crossfire is a multi-player graphical arcade and adventure game originally made for the X Windows systems environment. It has certain flavours from other games, especially gauntlet and the rogue-like games (Nethack, Moria, Angband, and Ragnarok). Any number of players can move around in their own window, finding and using items...

I recently installed BattleBit Remastered on Steam (uses EAC). Upon trying to run the game, I only get as far as a screen telling me to ensure EAC is installed. I tried their "repair EAC" option in steam, and there was no change (a terminal opens, blinks, and closes again). I tried a system update to see if that would help, but...

The Battle for Wesnoth is an open source, turn-based strategy game with a high fantasy theme. It features both singleplayer and online/hotseat multiplayer combat....

SuperTux is an open-source classic 2D jump'n run sidescroller game.

Scorched3D incorporates lively, fully destructible 3D landscapes that include animated jets, naval vessels, water and even birds, with detailed tanks and projectiles and stunning visual effects....

Stunt Rally is a 3D racing game with rally style of driving, mostly on gravel.

Minetest is an infinite-world block sandbox game and game engine. Players can create and destroy various types of blocks in a three-dimensional open world. This allows forming structures in every possible creation, on multiplayer servers or in singleplayer.

Extreme Tux Racer is a downhill racing game starring Tux, the Linux penguin. Tux must slide on his belly down snow and ice covered hills, collecting herring, and making it to the finish line before the time is up.

Flare is an open source, 2D action RPG licensed under the GPL3 license. Its game play can be likened to the games in the Diablo series.

Tilt the floor to roll a ball through an obstacle course before time runs out. Neverball is part puzzle game, part action game, and entirely a test of skill.

0 A.D. is a free, open-source, historical real time strategy game currently under development by Wildfire Games, a global group of volunteer game developers. As the leader of an ancient civilization, you must gather the resources you need to raise a military force and dominate your enemies.

Hedgewars is a turn-based strategy, artillery, action and comedy game, featuring the antics of pink hedgehogs with attitude as they battle from the depths of hell to the depths of space....

Veloren is a multiplayer voxel RPG written in Rust. It is inspired by games such as Cube World, Legend of Zelda: Breath of the Wild, Dwarf Fortress and Minecraft.

Available for Windows, GNU/Linux, BSD, and macOS Parkour, impulse boosts, dashing, and other tricks A huge amount of mutators and game altering variables Create maps with other players in realtime co-op edit Over ten years of active development, and still going!

Teeworlds is a free online multiplayer game, available for all major operating systems. Battle with up to 16 players in a variety of game modes, including Team Deathmatch and Capture The Flag. You can even design your own maps!

X-Moto is a challenging 2D motocross platform game, where physics plays an all important role in the gameplay. You need to control your bike to its limits, if you want to have a chance to finish the most difficult challenges.