The Koi Gate: game guide & free demo

Play The Koi Gate here.

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The game has landscape-style controls that can look small in portrait. Try landscape orientation or full screen where offered; close it if the controls remain uncomfortable. Availability varies by location and device. Any start screen inside the game belongs to the provider.

By CGA Editorial · Game rules checked against the provider · October 16, 2026

How the game works

The Koi Gate uses five reels, three rows and eighteen fixed paylines. Line wins can run from either edge, using the highest qualifying award on each line. A five-symbol line pays in both directions, and awards from different lines are added.

Inside the feature

Koi wilds appear on reels two, three and four. A Koi in a winning combination expands across its reel before that combination is paid. One or more Koi symbols anywhere on the grid award a respin; another Koi during the feature awards another. Respins continue until none appears, and their prizes are doubled at the triggering lines and bet.

What to pay attention to

Separate the Koi’s three jobs: substitution, reel expansion and awarding an extra spin. A respin and a reel expansion have different conditions. Read the actual player’s help for its configuration and any jackpot rules. The checked help includes a progressive-jackpot section; that does not make a demo balance withdrawable or identify an operator’s cash eligibility. A studio’s maximum-multiplier label alone is not a complete round limit.

Before you play

Open the in-game help to see the exact rules and RTP configuration of the version you are using. We do not publish an unconfirmed RTP or assign a score based on potential winnings. Demo outcomes are random and do not establish how a paid session will perform.

Our source

Official The Koi Gate game page, Habanero. This guide explains the published rules; it is not a report of a real-money test session.

Does CGA recommend a casino for this game?

This guide provides game information and free play. It contains no casino offer or deposit recommendation. Check availability and local rules independently before choosing any operator.

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