When to Play Retro FPS Online
Retro FPS Online fits when you want a full Freedoom first-person campaign in the browser: one-time download, IndexedDB cache, in-game saves, and portable .ftolfps export - no install and no account.
When you have a keyboard (and ideally a mouse)
When you have a keyboard (and ideally a mouse), Retro FPS Online fits: arrows move, Ctrl fires, Space opens doors, Esc opens the menu. Mouse turn after you click the screen. Touch-only phones are not the target.
When you can wait for one download
When you can wait for one download, Retro FPS Online is ready: campaign cards state the size before anything is fetched. After that, later visits start from IndexedDB and work offline.
When you want real saves
In-game Save/Load like the desktop originals, plus Export/Import of .ftolfps across machines (engine-version checked).
When to pick something else
When to pick something else instead of Retro FPS Online: want a tiny top-down Underrun run with zero storage? Try Retro Arcade Shooter (~120 KB). Want a short js13k voxel FPS? Use Voxel FPS Arena (~18 KB).
See how to play and comparisons.
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