Full list of all 59 Original War achievements.
The base game contains 22 achievements, and there is 1 DLC pack containing 37 achievements.
Complete American campaign on any difficulty
Complete Russian campaign on any difficulty
Kill Macmillan
Complete Tsaritsyn's quiz with all correct answers
Stay with Russians
Stay with Platonov
Let the Arab build the mortarmen barracks but don't hand over Heike to them afterwards
Hand over the Arabs building mortarmen barracks for you to UPF
Prevent the Russians from building their second base
Make Lisa and Joan betray Americans
Make Legion join your forces
Drop a siberite bomb
Kill Gorky
Before entering the EON attack your own men
Employ the mercenaries
Join the Alliance
Stay with Americans
Collect over a 1000 crates
Spare Kurt
In any mission have more Apemen in your service than people
Stepped into the EON
Don't enter the EON
Complete Alliance campaign on any difficulty.
Don`t save anyone.
Kill Mikhail.
Lose Jeff Brown and Lucy Donaldson.
Tame all apemen on the map (mission Soul of Apeman).
Kill Kurt.
Destroy all Russian buildings on the map (mission Payback Time).
Kill all apemen at the waterfall before Kirilenkova appears.
Don`t save Kirilenkova
Destroy the bunkers on both sides of the cliff.
Destroy Omicron without building a second depot.
Don`t save Scholtze.
Kill Hugh Stevens.
Save Vsevolod and all his men.
Don`t save Vsevolod.
Make the deal with Heike.
Build a behemoth vehicle.
Destroy Russian base
Build 6 or more solar vehicles
Capture one of the Russian tanks
Don't save the people south of the river
Don't let the two Russian cargo bays escape
Save all people that land in this mission
Let Joan die
Defeat the Russians without the help of Major Sikorski
Destroy the southern Russian base before it's fully built
Help Joan defend Kappa base
Get all your men to top side of the map before Andy calls you and tells you to attack