Not only smaller powers but even large corporations, organizations, and guilds, all avoided war. First, the cost of resources consumed during a war was unbearable. Second, the checks and balances between powers were also a crucial factor.
"Endless Stars" was unlike past games where resources respawned infinitely. It eerily emulated the real-world rule of limited resources, which inevitably led to conflict among players.
For development, for exploration, resources were needed.
Resources were finite. The more you mined, the less you had. Chen Yang maniacally designed more than 180 types of resources, including ammunition, special alloys for ship hulls, power, fuel, and industrial basics...
If you lacked any of these materials, you could not build your industrial foundation.