Here is the full list of all 17 Battlevoid: Harbinger achievements.
Complete 30 missions (Visit sector).
Complete 30 missions (Destroy enemy ship).
Kill nemesis.
Complete 10 missions (Destroy enemy ship).
Complete 10 missions (Visit sector).
Win easy difficulty.
Win normal difficulty.
Win hard difficulty.
Destroy 5 factories.
Destroy 15 factories.
Destroy 30 factories.
Destroy 50 factories.
Escort 10 ships.
Escort 30 ships.
Escort 50 ships.
Complete 50 missions (Destroy enemy ship).
Complete 50 missions (Visit sector).