November QoL Patch #1 is now live! - Change logs: https://lambda.tf/changes/update/55-november-qol-patch-1

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Zombie Survival is back!
Jump in just in time for Halloween and find out why ÆTHERA DYNAMICS released the virus
Rush Hour
Jump in to Rush, a new 3v3 fast paced gamemode. Capture the tower in as many arenas as possible
Operation Event Horizon
Operation Event Horizon
Operation Event Horizon is now here! Purchase your Operation pass today and complete 128 missions to earn unique rewards!
PEAK
Climb Mountains (PEAK)
This week's game night is Climb Mountains on PEAK on 7th Nov, 2026 18:00. Click here to view details & sign up.
A State of Trance 2027
Join us for the A State of Trance 2027 located in Rotterdam, Zuid-Holland, Netherlands. Dates: 24th - 2nd March 2027. Click here for more information
2 days ago
4th Nov, 2026 17:02
Help us improve Lambda Radio - Suggest Music
Lambda Radio has now implemented a suggestion feature, powered by Spotify.
6 days ago
1st Nov, 2026 14:16
November 2026 Update
The November 2026 Update introduces Prism UI, Bonfire Night Event Horizon Missions, New Backgrounds and more
2 weeks ago
18th Oct, 2026 15:41
Introducing Prism UI
Prism UI brings a modern UI system to the Source 1 Era.
Major Update
1 month ago
4th Oct, 2026 16:41
The Halloween 2026 Update
Lambda gets spooky with the Halloween 2026 update
2 months ago
30th Aug, 2026 15:13
September 2026 Update
The September 2026 update is the biggest update yet. Find out what's new
3 months ago
29th Jul, 2026 16:36
Content Authoring Tools v1.5.0 Highlights
The release of Content Authoring Tools may have gotten lost under the massive Summer 2026 Update. This news post covers some of the highlights in the v1.5.0 release.
3 months ago
28th Jul, 2026 20:17
The Summer 2026 Update
The 2026 Lambda Summer Meetup is just around the corner and today we're pleased to introduce the Summer 2026 Update with fresh, hot new content!
4 months ago
29th Jun, 2026 15:05
Summer 2026 Music Kit Competition
Starting Summer with a bang
5 months ago
31st May, 2026 11:53
The Cathedral of Counter-Strike
Lambda Pick 'Em for the IEM Cologne 2026 major are now here. Purchase your viewer pass to be automatically be entered in to the prize pool
5 months ago
24th May, 2026 17:27
Lambda Content Authoring Tools - Beta now available
Today we're releasing Beta 1 (v0.5.0) of our new Content Creation tool: Lambda Content Authoring Tools
Upcoming Events
Check out the latest events happening in our community.
Operation Event Horizon
Happening Now
November 2026 Giveaway
Happening Now
Climb Mountains (PEAK)
1 hour from now
7th November, 2026 18:00
A State of Trance 2027
3 months from now
24th February, 2027 18:00
Recent Updates
Read the latest release notes for our servers.
November QoL Patch #1
Latest
Bunny Hop (Garry's Mod): New Maps November 3rd 2026
3 days ago
November 2026 Update
6 days ago
Content Authoring Tools Update 1.6.1
1 month ago
Zombie Survival Fixes
1 month ago