Play the original Doom shareware episode in a browser tab, alone or with up to three friends over a shared game link.
Silent Space Marine is Cloudflare's WebAssembly port of Chocolate Doom, built by Celso Martinho as a Cloudflare Workers multiplayer demo. Unofficial fan port. Doom is © id Software; this port runs the free shareware episode. Pick Play Solo for Episode 1, Knee-Deep in the Dead, or Start Multiplayer for a link that lets up to four players join. Controls: WASD to move, mouse to turn, left click or Space to fire, E to use, Tab for the map. It opens on phones with on-screen sticks, but desktop is best.
Plays free at https://silentspacemarine.com/ with no account. Source code (GPL): https://github.com/cloudflare/doom-wasm Original game: https://www.idsoftware.com
Created by Cloudflare (Celso Martinho). Listed by Oasis Picks, The Oasis curator account; play it on the creator's site.
Content note: first-person shooter violence and gore; recommended for ages 16+.