Before there was Office or Windows 95 or Xbox

or AI, there was Altair BASIC.

Tags: 50, allen, Altair, Anniversary, basic, bill, code, gates, MICROSOFT, paul, source

Electronic Arts (EA) is releasing the source code for four Command & Conquer titles under the open-source GPL license. Only the code has been open sourced, not the games’ assets and cinematics.

Tags: c&C, cnc, code, command, conquer, generals, hour, mod, modding, source, zero

From the TF2 Official Site

Mod makers, rejoice! We’ve just released a massive update to the Source SDK, adding all the Team Fortress 2 client and server game code. This update will allow content creators to build completely new games based on TF2. We’re also doing a big update to all our multiplayer back-catalogue Source engine titles (TF2, DoD:S, HL2:DM, CS:S, and HLDM:S), adding 64-bit binary support, a scalable HUD/UI, prediction fixes, and a lot of other improvements!

Unlike the Steam Workshop or local content mods, this SDK gives mod makers the ability to change, extend or rewrite TF2, making anything from small tweaks to complete conversions possible.

The SDK is licensed to users on a non-commercial basis, meaning that any mod created using the SDK must be free, and any content in those mods must be free. TF2 mods may be published on the Steam Store, and after publication will appear as new games in the Steam game list.

Players have a lot of investment in their TF2 inventories, and Steam Workshop contributors have created of a lot of that content. The majority of items in the game now are thanks to the hard work of the TF2 community. To respect that, we’re asking TF2 mod makers continue to respect that connection, and to not make mods that have the purpose of trying to profit off Workshop contributors’ efforts. We’re hoping that many mods will continue to allow players access their TF2 inventory, if this makes sense for the mod.

Tags: code, fortress, mods, sdk, source, team, tf2

Bad Cop is back. Command a small army of Combine synths and soldiers on a Northern campaign to capture Dr. Judith Mossman. A modification for Half-Life 2.

Tags: code, entropy, FPS, half-life, mod, open, source, zero

Escape from a hostile computer system! Harvest data to create an armada of battle-processes to aid your escape! Take command directly and play the game as an RTS, or use the game’s built-in editor and compiler to write your own unit AI in a simplified version of C!

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Tags: A.I., circuit, code, GAMEMAKER, liberation, LINUX, rogue, RTS, sahmup, SIMULATOR, source

“The Open Sea” is a first real time strategy about the Golden Age of Piracy in the Caribbean sea, which is an open-source project. The settlement – the Atlantic Ocean. Note: the code browsing requires XNA Game Studio.

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Tags: caribbean, code, open, pirates, RPG, sea, source

A new version of the game is ready for download.

Unknown Horizons is an open source realtime economy simulation game with strategy elements in an isometric 2D engine loosely oriented towards Sunflower’s Anno series.

Unknown Horizons however is not an Anno emulator and you cannot play Anno with it. Unknown Horizons is not able and not supposed to use content from Anno. Therefore, you don’t need Anno to play Unknown Horizons. Unknown Horizons is based upon the FIFE game engine.

The Game is available for Windows, Linux and Macintosh. Source code available.

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Tags: anno, clonization, code, engine, fife, horizons, source, tycoon, unknown

Enter the Cavern of Flight. This game was made for Ludum Dare 35.

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Tags: ACTION, cavern, code, Dare, flight, knytt, ludum, source

For the 15th Anniversary of Serious Sam Croteam released source code for Serious Engine v1.10! It’s the very same engine used for Serious Sam Classic: The First Encounter and The Second Encounter. Serious Engine v1.10 won’t produce top-notch graphics, but the source code is very well commented, easy to modify, and there are lots of user generated mods out there. This version has everything you need to build your own game – or just experiment. A Linux source code release is in the works too.

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Tags: code, engine, GAMEMAKER, sam, serious, source

An action-shooter platformer game using the same mechanics as Megaman X. For the browser, windows, linux and mac.

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Tags: Battle, code, girl, gitgirl, LINUX, MAC, Mega, PLATFORM, rainbow, source