Games like Vectored Armada
Games like Vectored Armada include Cosmoteer: Starship Architect & Commander, Reassembly, Aliens: Dark Descent, FTL: Faster Than Light, and Gratuitous Space Battles. We matched them by the tags players give Vectored Armada on Steam (Building, Spaceships, Auto Battler, Tactical, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Cosmoteer: Starship Architect & Commander
Shared: Building · Sci-fi · Singleplayer

Reassembly
Shared: Building · Strategy · Singleplayer

Aliens: Dark Descent
Shared: Tactical · Strategy · Sci-fi

FTL: Faster Than Light
Shared: Sci-fi · Strategy · Singleplayer

Gratuitous Space Battles
Shared: Auto Battler · Spaceships · Strategy

XCOM 2
Shared: Tactical · Strategy · Singleplayer

STAR WARS™ Empire at War - Gold Pack
Shared: Sci-fi · Strategy · Singleplayer

Oxygen Not Included
Shared: Building · Singleplayer · 2D

Door Kickers
Shared: Tactical · Strategy · Singleplayer

Mechabellum
Shared: Auto Battler · Tactical · Strategy

Forts
Shared: Building · Strategy · Tactical

Kingdom Rush Origins - Tower Defense
Shared: Building · Singleplayer · Strategy

STAR WARS Zero Company™
Shared: Sci-fi · Singleplayer · Tactical

XCOM: Enemy Unknown
Shared: Tactical · Sci-fi · Strategy

Jurassic World Evolution
Shared: Building · Singleplayer · Strategy

Kingdom Rush - Tower Defense
Shared: Tactical · Singleplayer · Strategy

DG2: Defense Grid 2
Shared: Tactical · Sci-fi · Strategy

Sins of a Solar Empire II
Shared: Strategy · Sci-fi · Singleplayer

Hardspace: Shipbreaker
Shared: Sci-fi · Singleplayer · Space

Heat Signature
Shared: Sci-fi · Top-Down · Strategy

Dyson Sphere Program
Shared: Building · Sci-fi · Space

Space Engineers
Shared: Building · Singleplayer · Space

BattleTech
Shared: Sci-fi · Strategy · Tactical

Bridge Constructor Portal
Shared: Building · Strategy · Singleplayer