Far Cry 4 offers precisely 50 Achievements that are worth a total of 1000G.
Interestingly the vast majority of the Achievements are unlocked as part of normal play, requiring absolutely no special actions on the part of the player - in fact most of them unlock by surprise rather than any specific intent on the part of the player.
Achievements marked with a ** are the sort that unlock without any special actions on the part of the player - in fact the Achievements marked with **'s mostly were surprises - as noted above.
When you look at the Achievements that are marked with the '**' it may not be obvious to you but these represent a full 75% of all of the Gamerscore you can obtain! It is so unusual for the Achievements in a game to be so closely attached to the typical game play process that this warrants notice.
- All Clear** (50G) Liberate all Outposts (Campaign)
- Brother In Arms (20G) Liberate 1 Outpost playing as Hurk (Campaign Co-op)
- Caretaker Of Memory (15G) Find 10 Lost Letters (Campaig)
- Changing Lanes (20G) Perform a Vehicle Takedown from the passenger seat of a vehicle (Campaign Co-op only)
- Community Surprise (20G) Play a Top Rated map in the Map Browser (Map Browser)
- Custom-Fitted (15G) Buy all attachments and paint schemes for a single weapon (Campaign)
- Defender** (15G) Repel 3 Outpost Retaliation Parties (Campaign)
- Defuser** (10G) Complete 3 Bomb Defusal quests (Campaign)
- Deliver Us From Evil** (10G) Liberate 12 Outposts (Campaign)
- Display Of Fortitude** (20G) Conquer 2 Fortresses (Campaign)
- Dr. Feelgood** (10G) Craft 15 Syringes (Campaign)
- Drive-By** (15G) Kill 25 enemies while shooting and driving (Campaign)
- End Transmission** (20G) Liberate 8 Bell Towers (Campaign)
- Exorcist (10G) Remove or destroy 15 Masks of Yalung (Campaign)
- Fixer-Upper** (20G) Purchase 3 items for the Ghale Homestead (Campaign)
- Flame On! (20G) Kill 50 enemies with fire (Campaign)
- From A Distance (15G) Kill a target from 60m or more with an arrow or bolt (Campaign)
- Fully Loaded (30G) Learn all skills (Campaign)
- Gearhead (10G) Complete 3 Kyrati Films: Racing or Kyrati Films: Survival activities (Campaign)
- The Good Fight** (10G) Reach Karma Level 2, and purchase any Guns For Hire upgrade (Campaign)
- Hand Of Justice** (15G) Eliminate 3 Pagan's Wrath convoys (Campaign)
- Like A Bird (10G) Fly 5000m total in the Wingsuit (Campaign)
- Make It Rain** (20G) Spend 500,000 rupees total at Trading Posts (Campaign)
- Misdirection (10G) Distract 15 enemies with rocks (Campaign)
- No One Left Behind** (10G) Rescue 15 hostages in Hostage Rescue quests (Campaign)
- Overdose** (10G) Discover Shangri-La (Campaign)
- The People's Champ** (20G) Reach Arena Rank 5 (Campaign Arena)
- Quad Kill** (20G) Kill 4 enemies simultaneously with a single explosion (Campaign)
- Quick Learner** (10G) Learn 10 skills (Campaign)
- The Rarest Game** (20G) Complete 3 Kyrat Fashion Week quests (Campaign)
- Reign Of Death** (10G) Kill 30 enemies with Mortar rounds (Campaign)
- Renaissance Man (20G) Finish a public match of each game type in the Battles of Kyrat game mode (Battles of Kyrat)
- Rewriting History** (40G) Remove 30 Propaganda Posters (Campaign)
- Right Tributes** (15G) Spin 10 Mani Wheels (Campaign)
- Roadkill (10G) Run over 25 People (Campaign)
- Robin Hood (15G) Hijack 3 Royal Cargo Trucks and return them to a liberated Outpost (Campaign)
- Shutterbug** (10G) Tag 25 enemies using the camera (Campaign)
- The Sky Is Falling (15G) Perform a takedown from a Buzzer (Campaign)
- Tread Lightly** (20G) Liberate any Outpost without triggering an alarm in any mode (Campaign)
- Tricked Out** (10G) Craft 5 upgrades for your equipment (Campaign)
- Trigger-Man** (15G) Complete 3 Assassination or Eye for an Eye quests (Campaign)
- Tusker (10G) Kill 30 enemies with an elephant (Campaign)
- Two Birds** (10G) Using a sniper rifle, kill 2 targets with a single shot (Campaign)
- Well Read** (10G) Read 10 notes (Campaign)
- Well-Rounded** (20G) Complete any 6 Hunting quests (Supplies, Control, Survival) (Campaign)
Secret Achievements
- Hat-Trick** (50G) Decide Yuma's fate (Campaign)
- The King Is Dead** (100G) Decide Pagan Min's fate (Campaign)
- One Down** (50G) Decide De Pleur's fate (Campaign)
- Two Down** (50G) Decide Noore's fate (Campaign)
- Welcome To Kyrat** (20G) Join the Golden Path (Campaign)