Prey - Platform: XBox 360 Casino Mode: ------------ Successfully complete the game to unlock Casino mode. Select "New Game" and "Casino mode" will be above Normal mode. Casino mode allows you to play the casino games in Jen's Bar. Cherokee mode: -------------- Successfully complete the game on the Normal difficulty setting to unlock the Cherokee difficulty setting. Concept art galleries: ---------------------- Successfully complete the game on the Normal difficulty setting to unlock the first gallery. Successfully complete the game on the Cherokee difficulty setting to unlock the second gallery. Achievements: ------------- Complete the following achievements to unlock the indicated number of Xbox Live Gamerscore points. LAST CALL Last call complete 10 points ESCAPE VELOCITY Escape velocity completed 10 points DOWNWARD SPIRAL Downward Spiral completed 10 points RITES OF PASSAGE Rites of passage completed 10 points SECOND CHANCES Second chances completed 15 points ALL FALL DOWN All fall down completed 15 points CRASH LANDING Crash landing completed 15 points SACRIFICES Sacrifices completed 20 points THERE ARE OTHERS There are others completed 20 points GUIDING FIRES Guiding fires completed 20 points THE OLD TRIBES The old tribes completed 25 points HIDDEN AGENDA Hidden agenda completed 25 points JEN Jen completed 25 points THE DARK HARVEST The Dark harvester completed 30 points FOLLOWING HER Following her completed 30 points THE COMPLEX The complex completed 30 points ASCENT Ascent completed 40 points CENTER OF GRAVITY Center of gravity completed 40 points RESOLUTIONS Resolutions completed 40 points OATH OF VENGEANCE Oath of vengeance completed 50 points FACING THE ENEMY Facing the enemy completed 50 points MOTHER'S EMBRACE Mother's embrace finished 60 points Saviour: (65 Points) Completed game on Normal difficulty Galactic Hero: (65 Points) Completed game on Cherokee difficulty Young Blood: (10 Points) Reached 50 kills total in death match Brave Star: (15 Points) Reached 125 kills total in death match Ultimate Warrior: (50 Points) Reached 500 kills total in death match Team member: (10 Points) Reached 50 kills total in team death match Team player: (15 Points) Reached 125 kills total in team death match Team leader: (20 Points) Reached 250 kills total in team death match Sharpshooter: (10 Points) Reached 25 Sniper kills in death match and team death match Invisible assassin: (10 Points) Reached 25 kills in death match and team death match using spirit form Mechanic: (10 Points) Reached 25 kills in death match and team death match using the wrench Rifle Ranger: (10 Points) Reached 25 kills in death match and team death match using the rifle Crawler King: (10 Points) Reached 25 kills in death match and team death match using Crawler grenades Machine Gun Tommy: (10 Points) Reached 25 kills in death match and team death match using the Auto-Cannon Launcher Lord: (10 Points) Reached 25 kills in death match and team death match using the Crawler Launcher Soul Sucker: (10 Points) Reached 25 kills in death match and team death match using the Leech Gun Toxic Overlord: (10 Points) Reached 25 kills in death match and team death match using the Acid Sprayer Rank 1: (20 Points) Win a ranked match Ten Ranked Matches: (20 Points) Play ten ranked matches