You are Gordon Freeman. On your quest to the Lambda lab you find another one of Black Mesa’s nuclear weapon storage facilities. This one is different though; a rogue group of military has stormed the building and plans to detonate the weapon to rid earth of the alien invasion. You, becoming aware of this, must deactivate the nuclear device to save innocent scientists, and to prevent the destruction of Black Mesa’s vast amounts of data, research and information.

• Title: Ground Zero
• File Name: hl1-sp-ground-zero.7z
• Original File Name: gzero.zip
• Size : 2.27Mb
• Author: Derek McBurney AKA Hellfire
• Date Released: 31 October 1999

• PlanetPhillip.Com

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YAY! This map is suitable for use with MapTap

28th August 2006

An update by Valve to some Source engines has caused a number of mods to stop working properly and give errors. Please visit my Get Mods Working post for more details.

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1. 

   The Abandoned Workshops

   28th August 2006

   Gameplay:
   A simple episode with a lot of action and some challenging areas with a lot of good ideas throughout, especially the gas room. Plenty of health and ammo, a good enemy balance with a decent storyline.

   Design:
   Average design throughout, with a few basic areas. Texturing is basic and some bad texture choices through some areas of the mod. Lighting is average and not too over the top.

   Conclusion:
   A simple episode, not too hard or easy with good ideas throughout, worth your time.

   Rating: 70%

   Reply
2. 

   Zockopa

   28th August 2006

   Not a must have but worth playing 5-Map piece. Released in HL1s time of prosperity another MP-Mapper shows SP-mapping skill. Also worth playing the second part (for OPFOR).
   Since then Hellfire changed to UT2K3/K4 MP mapping,but had also made a DM Map for HL2.

   Reply
3. 

   nige

   16th January 2008

   Spoiler Played this a while ago just replayed it fairly good mod but one thing puzzles me at the end when you deactivate the lasers what does that mean.I finished it by going in the duct.

   Reply
4. 

   mel

   27th March 2008

   

   Good game, ending could have been better structured.

   Reply
5. 

   Sengoku

   1st July 2008

   

   I like this mod, it’s a good entertainment.

   Reply
6. 

   mcrip

   13th January 2009

   

   Good work, allmost.

   Reply
7. 

   TheUnbeholden

   14th January 2012

   

   I tried it and while its a tad to short for me, its longer than most short mods. 5 medium sized maps. Its got a level design thats pretty non-reminiscent of black mesa, taking up a silo sort of area that we only saw vaguely in HL.
   We have a standard set of levels that while they lack detail they are pretty memorable. The lack of credits at the end was a tad weird… but the difficulty is mostly easy with some parts where you fight numerous grunts.
   I also thought that while it lacked any vent crawling or puzzles it was fun while it lasted, with some voice acting that told us just what to do rather than anything else.
   There are some good ideas but largely average mod.

   Reply
8. 

   Technic

   18th January 2012

   

   Interesting maps with basic design but good playable, still nothing special if only the a bit better architecture and lighting.

   Pro’s:
   -Good design but very basic
   -Nice puzzles
   -Decent combat
   -A few nice scripts
   -Lot of ammo, weapons
   -Lil barrelride

   Con’s:
   -Sometimes very poor design
   -Mean scripts
   -No HEV at start

   Reply