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  • Requirements: Half-Life 2, Half-Life 2: Episode Two
  • Released Date: July 15, 2009

Research and Development is a puzzle-centric mod for Half-Life 2: Episode Two, featuring an unarmed player but plenty of violent mayhem. It was created by Matt Bortolino and released on July 15th, 2009.

In-Game InformationEdit

WeaponsEdit

  • Pheropod Bugbait
  • Gravity Gun

Characters / AlliesEdit

  • Resistance Soldier (hard to see)
  • Antlions

EnemiesEdit

  • Combine Soldiers
  • Combine Helicopters
  • Combine APCs
  • Fast Zombies
  • Zombies
  • Zombie Torsos
  • Combine Turrets
  • Combine Zombies (Zombines)
  • Combine Snipers
  • Combine Gunships
  • Rollermines
  • Barnacles
  • Antlion Guards
  • Antlion Guardian
  • Strider

GameplayEdit

External links Edit