Red Eclipse

An arena shooter for the modern era; released as free and open source software.

• No fees, no microtransactions, no lootboxes.
• Fast paced, modern first person shooter action with seven unique main weapons.
• Built on the permissively licensed, open source Tesseract engine.
• Available for Windows and GNU/Linux.
• 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 15 years of active development, and still going!

Red Eclipse builds on its own legacy of fast-paced unique, impactful gameplay and combines that with the visual capabilities of the superb and modern Tesseract engine to create a game that redefines what a first person shooter is.

There is absolutely no money whatsoever behind this project, and the entirety of the assets and source code are freely available to copy, modify, and redistribute. The entirety of the game is built on the contributions of volunteers, from the engine (which does not trace its heritage to any commercial studio) to the assets, levels, modes, user interfaces, and maps. We do not recieve lucrative income from selling skins or lootboxes or any microtransactions, and the servers and infrastructure is graciously run and maintained by volunteers.

This game is built on the Tesseract engine, written by one of our developers, Lee Salzman. Tesseract is a modern, deferred pipeline engine with realtime dynamic lighting, shadows, HDR, screenspace reflection, and dynamic organic model deformation. Tesseract and its predecessors, Cube and Cube 2, are all built from the ground up as open source engines with more permissive licensing than essentially every other 3D engine available.