Far Cry Classic has 21 achievements worth 400 gamerscore.
Achievements they've won
Achievements they've not won
Do not let Valerie die even once in Swamp.
Collect the Key card in Research without alerting anybody!
Complete the game in Hard or Realistic difficulty.
Complete Volcano Mission.
Kill the Traitor with a melee attack.
Complete Dam level without equipping a weapon on person (mounted weapons are allowed).
Complete Swamp Mission.
Kill Crowe with a headshot.
Complete Rebellion Mission.
Complete Steam Mission.
In Bunker, make the Mercs and the caged Trigens mingle with each other
Complete Treehouse without dying.
Complete Pier Mission.
Get a headshot kill from 500m.
Score 1 kill each from a land, maritime and aerial vehicle.
Fall over 150m and survive.
Do not die while Doyle hacks the entry gates.
Complete a level with full health and armor.
Complete Training mission.
Run over 5 enemies while driving a vehicle