Coin-O-Mania Game Overview · Wilds Mania Feature. Between one and five coins may spill from the chest onto each reel on any spin. · Chest Feature. A chest. Coin-O-Mania is a video slot by IGT Gaming that was launched in The game takes you for an epic adventure into the seven seas to look for hidden treasure. Coin O Mania by IGT launched in , is an online casino game that has 5 reels and 4 columns with 40 fixed paylines. It revolves around an epic seven seas.