• Required: Half-Life 2
  • Released Date: Jul 6, 2006


Single player mod from the (co)author of Sweet Half-Life and Peaces Like Us.

You are Gordon in a parallel world and the city is under attack from unknown enemies. You have to find out a way to stop the invasion by traveling into their world and correcting the "mistake."

You'll experience unique single player experience spanning 3 chapters, 10 maps.



After finishing Sweet Half-Life project, Koumei Satou became a contract level designer for Namco's LEDZone project (Counter-Strike Arcade). It's safe to say he was the first professional level designer in Japanese game industry history.

When Half-Life2 was released, he started many experiments with entities at home (LEDZone doesn't use Source Engine). Then he began to work on this mod without a whole picture. He made it map by map from chapter 1.

He did everything alone in Hammer and FacePoser without any coding. It took 9 months to complete. "I had been very busy at work, so I could only use 2-3 hours a day this time.", he says.

After these months of silence (He didn't tell anyone that he was making a mod.), he called some testers from C-SEC - the Japanese HL2 mod community. One coder added chapter unlocking codes, but other parts are untouched.

You can do anything you saw in this mod with entities.


Koumei Satou - Concept, Level design, everything

Awards Edit

In-Game InformationEdit


  • Crowbar
  • USP Match Pistol
  • H&K MP-7 Sub-Machine Gun
  • MP-7 Grenade
  • SPAS-12 Shotgun
  • .357 Magnum
  • Gravity Gun
  • Combine Assault Rifle
  • AR2 Secondary Energy Orb
  • Rocket Powered Grenade Launcher

Characters / AlliesEdit

  • Citizens
  • Metro Police
  • Isaac Kleiner
  • Combine APCs
  • City Scanners
  • Combine Security Camera
  • Striders
  • Combine Soldiers
  • Combine Elites
  • Alyx Vance
  • Wallace Breen
  • Barney Calhoun
  • Judith Mossman
  • Rollermine
  • Combine Gunships
  • Combine Dropship
  • Resistance Soldiers
  • Resistance Medics


  • Numbers
  • Manhacks
  • Cylinder-shaped Machines
  • Triangle-shaped Machines
  • Regular Headcrabs
  • Regular Zombies
  • Regular Zombie Torsos
  • Fast Headcrabs
  • Poison Headcrabs
  • Enemy Fighters
  • Enemy Beam Ships
  • Antlions
  • Antlion Guards
  • Metro Police
  • Combine Soldiers
  • Combine Elites
  • Combine Turrets
  • Combine Prison Guards
  • Fast Zombies
  • Poison Zombies

Other infoEdit

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