Half Life Single-Player Map Portal

Half Life Single-Player Map Portal tt_official.png

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Author Mad Jonesy
Date of release Final - October 30, 2000
v1 - ?
.bsp filename hl_sp_portal


Used to begin Valve's single-player Half-Life maps. Players can choose from and instantly go to any of the Half-Life single-player chapters (Anomalous Materials, Office Complex, We've Got Hostiles!, Blast Pit, On a Rail, Residue Processing, Questionable Ethics, Surface Tension, Lambda Core, Xen, Gonarch's Lair, and Interloper). Just walk through the corresponding door and you'll be on your way to some co-operative action in the original Half-Life single-player campaign!

Additional info

IMPORTANT: Full co-op support for Valve's HLSP maps MUST be installed on the server (the machine on which the game was started, even if you're playing off-line)… otherwise there'll be bugs everywhere, and many points past which you will not be able to continue.

For instructions on installing full HLSP co-op support, check this page:

HLSP support cannot be installed for CS Retail or DoD Retail.

Additional credits




There are over 1113 maps for Sven Co-op! Here are a few:


0 / 5

2018 difficulty:hard fun skills surf


1.5 / 5

1999 horde needs-dl


0 / 5

2000 boss horde


4.3 / 5

2002 2008 black-mesa boms co-oprequired creepsworld-top50 defense official official-screlease rcbot secrets size:medium svencoop4 svencoop5


1 / 5

2015 abandoned fun race

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