ACHIEVEMENT - HOW TO UNLOCK Survivor (25 points) - Complete the game. Honour (15 points) - Collect 50% of the medals. Private Eye (35 points) - Collect all documents and objects. Celebrated (25 points) - Collect all the medals. Challenged (15 points) - Complete the Challenge Room. Tinker (10 points) - Complete a hack. Swept Off Their Feet (15 points) - Sweep 3 Malthusians off their feet with water. Vengeance (10 points) - Kill 5 Mathusians with fire or electricity. Chain Gang (15 points) - Kill 2 Malthusians within a timed chain attack. My Hero (10 points) - Save Chief Billingham. Davy Jones' Locker (15 points) - Neutralize 10 Malthusians in underwater combat. Drowned (10 points) - Drown a Malthusian.