If you liked this
Games like Sins of a Solar Empire II: Reinforcements
If you finished Sins of a Solar Empire II: Reinforcements, the closest matches are Anno 117: Pax Romana, Against the Storm, Anno 117: Pax Romana - Prophecies of Ash, Factorio: Space Age and Homeworld 3. All 36 share its real time strategy (rts) genre and are ranked by how closely their themes and modes overlap.
85
Anno 117: Pax Romana
91
Against the Storm
86
Anno 117: Pax Romana - Prophecies of Ash
92
Factorio: Space Age
77
Homeworld 3
85
Bulwark Evolution: Falconeer Chronicles
91
Rome: Total War
64
Machine Mind
75
Men of War II
90
Medieval II: Total War
83
Anno 1800
90
Theme Hospital
85
Europa Universalis IV
88
Total War: Shogun 2
86
Shadow Tactics: Blades of the Shogun
86
Desperados III
82
Spore
Manor Lords
78
Age of Empires III
84
Hearts of Iron IV
85
Command & Conquer 3: Tiberium Wars
79
Stellaris
76
Knights of Honor II: Sovereign
79
Dungeons 4
88
Homeworld: Remastered Collection
75
RimWorld
Becastled
80
Stronghold Crusader
80
Brütal Legend
80
Plague Inc: Evolved
83
Sid Meier's Pirates!
85
Anno 1800: Console Edition
75
Command & Conquer: Red Alert 3
78
Company of Heroes 2
87
Sins of a Solar Empire II
81