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// R-OTIndependent runtime / WebAssembly

OpenTyrian,
take flight.

A complete arcade shoot-’em-up in its own WebAssembly runtime. Pilot through Tyrian 2000’s freeware campaign with browser-local saves; this engine does not share Doom’s WAD loader, game loop or data files.

Runtime statusPreparing OpenTyrian2000…
Runtime
SDL2 / WebAssembly
Content
Tyrian 2000 freeware data
Session
Browser IndexedDB saves
Input
Keyboard / touch / gamepad*

D-pad: steer / menus
△ mode · □ sidekick · ○ fire · × sidekick

Freeware data, libre engine: OpenTyrian2000 engine code is GPLv2-or-later. The bundled Tyrian 2000 data is the project-documented freeware release; its original readme is retained. Engine license · Data notice · Source notice. *Gamepad support is delegated to SDL and browser capability.