Play Serious Sam Anthology in your browser
Serious Sam is Croteam's old-school first-person shooter: arenas full of monsters, an arsenal of over-the-top weapons and a hero who never stops talking.
About the game
This page includes both classic campaigns: The First Encounter (2001, ancient Egypt) and The Second Encounter (2002, South America, Mesopotamia and medieval Europe). Pick a part on the game poster, then press Play.
The browser build runs the original Win32 client on BottleShip: the Windows executable, the OpenGL renderer and the game data are streamed on the first launch and cached in the browser.
Desktop only: Serious Sam needs a keyboard and mouse, WebGPU and a modern Chromium-based browser.
Each part saves in browser storage; signing in mirrors both save sets to the cloud, so you can continue on another computer.
Screenshots
How to play in your browser
- Open the page in Chrome or Edge on a desktop computer.
- Pick The First Encounter or The Second Encounter on the poster and press Play.
- Wait for the first download and the main menu.
- Click the game to capture the mouse; Esc releases it.
Requirements
- Desktop computer
- Keyboard and mouse
- Chrome/Edge with WebGPU
- Stable connection for the first launch
Controls
| Action | Key / button |
|---|---|
| move | WASD |
| look / aim | Mouse |
| fire | left click |
| jump | Space |
| crouch | C |
| use / open | E |
| run | Shift |
| change weapon | 1–0 / mouse wheel |
| NETRICSA (mission info) | Tab |
| pause menu (Esc — quit dialog) | Backspace |
Frequently asked questions
- Is Serious Sam playable in a browser?
- Yes, on a desktop computer.
- Which Serious Sam games are included?
- The First Encounter and The Second Encounter — pick a part on the game poster before pressing Play.
- Does it work on phones?
- No, it requires desktop graphics, a keyboard and a mouse.
- Do I need to download anything?
- No, the game data is streamed and cached by the browser.
- Are the saves shared between the two parts?
- Each part keeps its own saves, and both are mirrored to the cloud when you sign in.
Updated