ProtoGalaxy achievements

Turret Defense: Get to round 13 (single or multiplayer).

Fly through all markers in the Battle Ship mission (single player, normal difficulty or harder).

Turret Defense: Have 40 turrets in play (single or multiplayer).

Create a mine constellation in the Fort (single player, normal difficulty or harder).

Complete the Derelict mission without revisiting any room (single player, normal difficulty or harder).

Turret Defense: Have all boss types in play (single or multiplayer).

Turret Defense: Sell 20 turrets (single or multiplayer).

Complete the Black Hole mission using only the gravity beam (single player, normal difficulty or harder).

Complete ProtoForce: Alpha Op on Hard difficulty (single or multiplayer).

Complete the Substructure mission without destroying any enemies (single player, normal difficulty or harder).

Collect 7500 money (single or multiplayer, any difficulty).