Halo Wars: Definitive Edition achievements

Complete the Campaign on Heroic Difficulty.

Unlock 20 Timeline Events.

Collect all Skulls.

Finish with 5000 net resources tributed to your teammates on Memorial Basin except in Deathmatch.

Win 20 Skirmish or Multiplayer Matches

Obtain a lifetime campaign Score over 1,000,000.

Get a winning High Score with 10 or less Squads against the Heroic AI.

Mission 5: Jack 6 Covenant Vehicles.

Win a Heroic Skirmish Game against the AI in under 10 minutes.

Gain at Least 15 population from a single wave in a Reinforcement game.

Win a Skirmish Game with every Leader.

Mission 14: Don't claim an extra base.