|Date of release||Final - December 22, 2003 (SC 3.0)
v1 - December 19, 2002 (SC 2.1)
Beta 1 - October 31, 2002
TIME: Lambda Incident + 12 hours
In a bid to escape the Black Mesa Research Facility and counter the alien threat, former co-workers of the Facility must work together if they want to stay alive. Survival is only an option to those prepared to put aside their differences and fight as one.
As a team of Security Workers and science personnel, you have so far managed to escape the lower lab levels of the facility and have reached the surface, unfortunately, so have the military forces sent in to clean up the area. Your goal is to navigate the various topside complexes and make your way to the underground Rail system leading to the Lambda reactor complex, where you should be able to find shelter.
Resistance is high, so be on the lookout for Aliens, Soldiers and the rumored Black Operatives that are said to be patrolling these areas.
- Included in Sven Co-op 4.0B, Sven Co-op 3.0 and Sven Co-op 2.1 mod releases.
- Surface Ex-Tension received BOMS status on the Sven Co-op forums.
- Followed by Surface Ex-Tension 2: Extended Resistance.
- It was built in about a month.
- Ranked #2 in the Creepsworld Top50 maps list.
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