Pick something, then click in the level to place it.
Open a map
Build on one of our maps or a player map: you get your own copy in Your levels.
12/ ∞
Map finished
0:00.000
Press R to restart
Source-style movement · 100 tick
CSS-SURF
Reading file
Level builder
Your level is saved in this browser as you build. The controls are listed in the panel at the
side of the screen while building, and can be changed under Settings. To publish it for
everyone, finish it once in Play test.
Timer zones
No zones yet.
Pick a name for the online hiscores
Built-in maps 50 maps, 10 of each difficulty, easiest first
Build your own surf map
New level gives you a start and an end platform. Hold the mouse wheel button to
look around, fly with WASD, and click to place pieces. Right-click a piece for its menu.
The Select tool (Q) picks pieces to move or change; the panel shows their exact position
and size.
Play test runs it with the timer. Esc brings you back to building.
Finish it once, then Publish it so everyone can play it under Player maps.
Your levels saved in this browser
Player maps
Maps built in the Map Builder and published by players. Every time on their hiscores is
checked by the server.
Maps are read in your browser and never uploaded. Maps you load are kept in this browser so
you can play them again.
Your maps
Gameplay
Browsers reserve some Ctrl shortcuts, so Ctrl+W can close the tab. While playing
fullscreen, Chrome and Edge hand those keys to the game. Other browsers ask before closing
the tab, or crouch with C. Mouse input is raw (no OS acceleration) where the
browser allows it.
On a phone or tablet: hold it sideways. The left stick moves, the right stick looks, and
jumping is automatic. The Map Builder needs a keyboard and mouse.
Video and sound
Now playing:
nothing yetMusic starts on a built-in map
Crosshair
Colour
Knife and skins
Weapon skins none
Skin packs made for the CS:S custom folder (.rar, .zip, .7z), or a single
v_hands.vtf. They replace the knife, USP or hands, and stay on this computer.
Controls click a key to change it
Esc: pause and settings
Builder controls only while building · click a key to change it
Fly with your movement keys (Jump up, Crouch down); the mouse wheel zooms
Hiscore name not set
Your name on the online hiscores and on maps you publish. It's remembered in this
browser; no password or e-mail.
Recovery key (use your name in another browser)
Keep this key somewhere safe: it's the only way to get your name back if this browser
forgets it.
Your CS:S files not set
Maps often use textures and skies from the game itself, and the knife and USP come from
it too. Point to your own Counter-Strike: Source folder (Steam: Manage, Browse local
files) and they're read from your copy. Nothing is uploaded.
Usually
C:\Program Files (x86)\Steam\steamapps\common\Counter-Strike Sourcepaste it into the folder window's address bar