Accomplish the indicated achievement to get the corresponding number of Gamerscore points:
- "To Hear the Tumult of Children" (20 points): Complete the game.
- Old School (40 points): Complete the game without dying once.
- I Am Arthur Clark (50 points): Complete the game in one sitting without dying.
- Speed Demon (10 points): Beat the Rooftops north of Bayswater Road in under 3 minutes.
- 3.711 m/s� != 9.780 m/s� (10 points): Destroy a Drone using a pushable object.
- Sole Survivor (10 points): Escape Bathurst Mews using first NPC targeted by Tripod .
- A Ninja In Tweed (10 points): Cross Hyde Park North without dying once and being spotted by a single Drone .
- Selfless (10 points): Give Jenny the gasmask.
- Follow me! (10 points): Free all prisoners from holding pens in Martian Cylinder.
- Martian Exterminator (10 points): Complete Hyde Park level.
- Light in the Darkness (10 points): Complete London EC4 Underground.
- Home again, home again (10 points): Complete Stamford Street, South Bank level.