Roarr The Adventures of Rampage Rex Achievements Full list of all 6 Roarr The Adventures of Rampage Rex achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc Flag Filter All None 6 Offline Mode 6 Single Player 6 Cooperative 6 Main Storyline Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply Port DestroyerDefeat S.S. Landshark. Jungle ExplorerDefeat Tremor. Country PioneerDefeat Combine. Desert ConquerorDefeat Sphinx Arctic ObliteratorDefeat Rigger. Alien BaneDefeat Goo.F.O.