Eyecon's online slot Wild Koi is a Zen-themed game. The game comes with a plethora of bonus options and playlines that may be customised for maximum winning potential. On a board with 5 reels, 3 rows, and up to 25 win lines, players can strive to reel in the Koi wins. Scatters pay any, and the top payout for a single win is 3,000x. The developer opted for play elements including re-spins, stacked wilds, and growing symbols.