Twilight Imperium: Fourth Edition · Expansion

Twilight Imperium: Thunder's Edge

Worth it

Our take
BGG regulars like that it is modular (use as much or as little as you want) but warn that it adds overlapping rules and is wilder than Prophecy of Kings; buy it after Prophecy of Kings if your group wants more variety.
What you need first
Needs the Twilight Imperium Fourth Edition base game; works with or without Prophecy of Kings.
What it adds
Five new factions, a breakthrough card for every faction, the Thunder's Edge expedition and legendary planet, the Fracture with neutral units and relics, 20 optional galactic event cards, the printed Twilight Codex content including the Council Keleres faction, new faction reference cards, and the Twilight's Fall alternate game mode.
What it fixes
Breakthroughs buff weaker factions, galactic events let groups vary each game, and players who never printed the free Codex PDFs get that content in the box.

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Last checked 2026-10-08. Spot a mistake? Tell us.