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The complete Twilight Imperium 4 Living Rules Reference, Thunder's Edge updates and every component — searchable in plain English.

Can PDS shoot into adjacent systems?Does AFB happen every round?What does the Hacan agent do?Can I spend trade goods on votes?Do fighters count against fleet pool?gravity rift bonus twice?Who breaks agenda ties?Jol-Nar flagship

491rule paragraphs

86FAQ & rulings

1,278components

30factions

Rules Reference

All 101 LRR topics, word for word, with FAQ, errata and Thunder's Edge updates.

1,278 components

Compendium

Every technology, unit, leader, action card, agenda, objective, relic and more.

Factions

Abilities, leaders, flagships, mechs, faction tech and breakthroughs.

Galaxy

Browse system tiles by wormhole, anomaly, resources or influence.

Quick reference

Phase order, the tactical action, combat steps and timing at a glance.

Common mistakes

The rules everyone gets wrong, settled with exact citations.

Thunder's Edge is in

Five new factions, breakthroughs, the expedition, the fracture, galactic events — and the official clarifications that change earlier rulings, like gravity rifts boosting each ship only once.

Read the rules See the clarifications

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