Here is the full list of all 26 Mercenary Kings achievements.
Complete a mission with all parts of the SWAT-12 shotgun equipped.
Craft over 100 knives and 300 gun parts.
Unlock all Proficiencies.
Craft 20 Ornaments and 20 Banners.
Craft all Bionic Mods.
Defeat over 10000 enemies.
Revive a teammate 10 times with the Adrenaline Shot.
You pledged $60 or more on Mercenary Kings and made it happen. Thank you!
Defeat the Steel Soldier using only your knife.
Earn over $1,000,000.
Hunt over 250 animals.
Complete a mission in single player without getting hit.
Beat the fastest time of all missions of the game.
Reach the Five-Star General rank.
Activate all 14 food skills.
Clear all missions of any rank consecutively using the same gun parts.
Clear all Major rank missions without using Rations nor First-Aid kits.
Clear all 10 Primary missions of the game with the Bolt 45.
Rescue all 6 Kickstarter backer hostages.
Complete No Negotiation without saving any hostages.
Clear all missions of the game.
Defeat the final boss.
Collect over 2000 materials.
Defeat Commander Byron Baron once.
Defeat over 1000 enemies.
Defeat a boss before it can escape.