For a chaotic, mind‑blowing strategy game that doubles as a cosplay opportunity, go for Twilight Imperium. It’s massive, full of shifting alliances and epic battles, so you can dress up as a star‑empire ruler or a rogue trader and let the chaos play out on the board. If you want something a bit more manageable but still wild, try Mage Knight; its solo‑friendly combat and deck‑building let you play as a powerful mage or a fierce champion, perfect for a themed costume.