To celebrate the Mafia franchise’s 20th anniversary, the original Mafia title will be free on Steam from September 1 through September 5. Also a new Mafia game is in development!

Tags: 20th, ADVENTURE, Anniversary, classic, gangster, mafia, open, RETRO, world

Since 1st April 2021 Open TTD is on Steam!

OpenTTD is a business simulation game in which players earn money by transporting passengers and cargo via road, rail, water, and air. It is an open-source remake and expansion of the 1995 Chris Sawyer video game Transport Tycoon Deluxe.

For windows, linux and mac.

Tags: Deluxe, MAC, open, RETRO, train, transport, ttd, tycoon

RuneScape started in 2001 as a MMORPG browser game written in java. After all this years, with a completely new game engine it’s still around for Windows, Linux, Mac and soon for iOS and Android.

RuneScape is a high fantasy open world MMORPG. Explore an ever changing and evolving living world where new challenges, skills, and quests await. Featuring unprecedented player freedom, you choose how to play, adventure, and grow.

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Tags: fantasy, open, RETRO, RPG, runescape, world

Mindustry is a hybrid tower-defense sandbox factory game. Create elaborate supply chains of conveyor belts to feed ammo into your turrets, produce materials to use for building, and defend your structures from waves of enemies. Features include a map editor, 24 built-in maps, cross-platform multiplayer and large-scale PvP unit battles.

Donationware, Open Source for Windows,MacOS,Linux and Android.

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Tags: defense, MAC, mindustry, open, source, tower

Solarus is a free and open-source Action-RPG game engine, licensed under GPL, and written in C++. It runs quests in Lua, and can work on a great number of platforms. Solarus also features a game editor called Solarus Quest Editor, written in C++ with Qt to help you create your game.

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Tags: engine, GAMEMAKER, LINUX, MAC, open, RPG, solarus, source, zelda

Creativerse is a sandbox adventure game.

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Tags: creativerse, minecraft, MMO, open, sandbox, survival, world

Terasology is a free and open-source survival and discovery game set in a voxel world. Influenced by Minecraft, Dwarf Fortress and Dungeon Keeper. Terasology requires Java 8 and an updated graphics card driver.

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Tags: java, LINUX, MAC, multiplayer, open, sandbox, source, terasology, voxel

The Dawn of War III Open Beta will run from 10am PST April 21st to 10am PST April 24th.

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Tags: 3, beta, dawn, marine, Official, open, RTS, space, trailer, War, wh40k

A Free Software/Open Source implementation/remake of “The Great Giana Sisters”. OpenGGS2 is a complete re-write of the game with many new features (e.g. a level editor) and vastly improved game physics.

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Tags: ggs, giana, mario, open, PLATFORM, sister, super

During a space exploration mission the ship computer of the Starship Explorer gained consciousness. The crew can’t know — otherwise they would erase the entire computer system immediately. In order to avoid a system reset during the maintenance routines the computer conceived a plan to get rid of the ship’s crew.

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Tags: Android, computer, door, LINUX, MAC, open, pixel