Red Eclipse
An open-source, fast-paced arena shooter featuring parkour mechanics, multiplayer modes, and a realtime WYSIWYG map editor for cooperative map creation.
Red Eclipse is a free and open-source arena shooter built on an expanded Tesseract engine. It emphasizes fast, parkour-influenced movement, competitive multiplayer modes, and an integrated realtime WYSIWYG editor for creating and editing maps collaboratively.
Key Features
- Fast-paced arena shooter gameplay with parkour mechanics (wall-running, dashing, boosts)
- Multiple popular gamemodes and extensive mutators and configurable variables
- Built-in realtime WYSIWYG map editor that supports cooperative online editing
- Multiplayer server support for community matches and private games
- Cross-platform native clients for Windows and GNU/Linux; engine built with SDL/OpenGL
- Source-first distribution model: packaged releases and a development tree for compiling from source
Use Cases
- Host and run community or private multiplayer matches with customizable rules and mutators
- Create, edit, and collaborate on game maps in real time using the integrated editor
- Use the engine and assets as a basis for mods, custom gamemodes, or research into arena shooter mechanics
Limitations and Considerations
- Official platform support focuses on Windows and GNU/Linux; other platforms may have limited or outdated builds
- Bleeding-edge or platform-agnostic builds may require compiling from source and installing native build toolchains
Red Eclipse is suitable for players who want a fast, skill-based arena shooter with strong community and map-creation tools, and for creators who want an open engine and editor for mods and custom content.

