Steam Workshop focus on custom maps or logic-based scripts rather than structural engine changes. Reddit +4 Games with Co-op similar to They Are Billions If you are specifically looking for a survival RTS with a built-in co-op experience, several titles have been recommended by the community: 10 sites They Are Barbarians! - Conan Unconquered Co-op RTS ... Jun 1, 2019 —
If you want to alter the base rules of They Are Billions on Steam to make single-player feel like an entirely fresh, massive cooperative-scale war, you can manually apply community rulesets: Reddit·r/TheyAreBillions they are billions coop mod
| Challenge | Potential Solution | |-----------|--------------------| | Game engine (Unity) originally single‑player | Use or dedicated relay server ; freeze simulation ticks via deterministic lockstep | | Pathfinding with multiple colonies | Reuse existing pathfinding; split calculations per player region | | Desync risks | Periodic checksum sync; rollback on mismatch | | Save/Load co-op | Store all player states in one save file; host controls load | | UI scaling | Add player color coding (blue, green, yellow, purple) | Steam Workshop focus on custom maps or logic-based
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