Steam Workshop::Sovereign Chess

Steam Workshop::Great Sovereigns

Ultra Aggressive & Smart AI (DEI version) - Skymods

5D Chess With Multiverse Time Travel on Steam

Turn Time Improvement Fixes for Attila for Better Campaign Map FPS (and slow computers) - Skymods

By the people, for the people - Vikalp Sangam

Steam Workshop::Sovereign Chess (Multi-Model Edition, v1.2b)

Sovereign Chess Production Board

List of chess variants - Wikipedia

Sovereign Chess' is a Battle Without Loyalty or Humanity

Steam Workshop::Duchess - 6 Player Chess