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