If you liked this
Games like Sins of a Solar Empire: Rebellion
If you finished Sins of a Solar Empire: Rebellion, the closest matches are Against the Storm, Factorio: Space Age, Bulwark Evolution: Falconeer Chronicles, Machine Mind and Shadow Tactics: Blades of the Shogun. All 36 share its indie genre and are ranked by how closely their themes and modes overlap.
91
Against the Storm
92
Factorio: Space Age
85
Bulwark Evolution: Falconeer Chronicles
64
Machine Mind
86
Shadow Tactics: Blades of the Shogun
75
RimWorld
Becastled
80
Plague Inc: Evolved
81
Northgard
68
Banished
Foundation
74
War Hospital
86
Defense Grid: The Awakening
85
DEFCON
85
Door Kickers
89
Offworld Trading Company
79
Defense Grid 2
Empires of the Undergrowth
Diplomacy is Not an Option
83
Door Kickers: Action Squad
90
Wargame: European Escalation
67
Bad North
76
Curious Expedition
86
Ashes of the Singularity: Escalation
80
Godus
85
Cannon Brawl
90
AI War: Fleet Command
90
Sunless Sea: Zubmariner
78
Ultimate General: Civil War
76
Wargame: AirLand Battle
80
Unholy Heights
65
Gratuitous Space Battles
Upcoming
Beyond Astra
60
War for the Overworld
Free
80
Interloper
Upcoming