The Road To Gehenna Add-on for The Talos Principle has 4 achievements.

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  TrueSteamAchievement desc TrueSteamAchievement asc Achievement name Achievement name desc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc
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  • 4 Offline Mode
  • 4 Single Player
  • 2 Main Storyline
  • 2 Missable
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