777 Rainbow Respins slot
777 Rainbow Respins is an Irish-themed Microgaming slot developed with Crazy Tooth Studio and released in March 2022. It plays on 4 reels and 7 rows with 127 paylines. The engine behind it is Respin Insanity: every winning spin lights up the win and spins that part of the grid again, while a leprechaun host adds 2x multipliers with a tip of his hat.
Editorial note: this guide explains how 777 Rainbow Respins works. Rules, features and payout figures are set by the studio and can differ between operators and game versions, so check the game’s information panel before you play. Slots are games of chance, and nothing here predicts results. Availability at Fortune Games can change.
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777 Rainbow Respins: key facts
| Studio | Microgaming, developed with Crazy Tooth Studio |
|---|---|
| Released | March 2022 |
| Reels and paylines | 4 reels, 7 rows, 127 paylines |
| Volatility | High |
| Maximum win | 6,601.05x stake |
| Respin Insanity | Every winning spin highlights the win and spins it again |
| Multipliers | The leprechaun host awards locking 2x multipliers with his hat |
| Respin Insanity Bonus Spins | Three pots of gold start 4 bonus spins, with Respin Insanity running and multipliers from the leprechaun |
| Autoplay and turbo | Not available at sites licensed in Great Britain; UK rules require at least 2.5 seconds between the start of one game cycle and the next |
| Stakes | From 20p a spin in the studio’s range. UK rules cap online slot stakes at £5 a spin, or £2 if you are 18 to 24 |
| RTP | Shown in the game’s information panel |
| Series | Stand-alone |
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
How 777 Rainbow Respins plays
The grid is tall and narrow: four reels, each seven symbols high, carrying 127 fixed paylines. The lower symbols are the four card suits along with stars, moons, horseshoes and suns. Rainbows, harps and double BAR symbols sit above them, and the sevens of the title head the paytable. A leprechaun stands beside the reels as the game’s host, and pots of gold are the symbols to watch for, because three of them open the bonus.
Crazy Tooth rates the game as high volatility. The top award in the table is the studio’s own figure, worked out from simulated play rather than set as a fixed prize, and the game sheet describes it as a win of up to that many times the bet.
Respin Insanity
Respin Insanity is the studio’s own respin engine, and it starts after any winning spin rather than waiting for a trigger symbol. The part of the grid that formed the win is highlighted and spun again, giving the same positions another chance to add to the result. Because it follows every win, every paid spin is followed by one of the game’s respins of the winning area.
The leprechaun’s 2x multipliers
The leprechaun takes part in the respins. With a tip of his magical hat he awards 2x multipliers, which lock into place rather than vanishing after one spin. Each one doubles the win it becomes part of, and the game sheet shows them sitting on the reels through the respins.
Respin Insanity Bonus Spins
Three pots of gold landing together start the bonus, and the leprechaun marks it by dancing a jig. The round lasts four spins, and Respin Insanity stays active throughout, so every win inside it still spins again. The leprechaun awards multipliers during the round to lift those respins, all to a soundtrack of jovial Irish tunes.
777 Rainbow Respins compared with 777 Strike
777 Strike, from Red Tiger, takes the opposite approach to the same sevens theme. It keeps a classic 5x3 layout with 10 paylines and builds its bonus as a three-level ladder of seven spins each, moving from Free Spins to Win Spins to Wild Spins. 777 Rainbow Respins puts its effort into respins after ordinary wins instead, on a grid with far more lines, and its maximum win is higher.
| Game | Released | Grid and lines | Bonus | Maximum win |
|---|---|---|---|---|
| 777 Rainbow Respins | March 2022 | 4 reels, 7 rows, 127 paylines | Respin Insanity Bonus Spins from three pots of gold | 6,601.05x stake |
| 777 Strike | April 2021 | 5 reels, 3 rows, 10 paylines | Free Spins, Win Spins and Wild Spins in three levels | 2,830x stake |
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
777 Rainbow Respins at Fortune Games
You will find 777 Rainbow Respins with our slots (18+), and the tiles above show it beside a handful of other games from our lobby. The UK caps in the table apply to every player. There is no autoplay or turbo mode, as at every site licensed in Great Britain. Fortune Games has an app on the App Store and Google Play.
Frequently asked questions
What is 777 Rainbow Respins?
It is a Crazy Tooth Studio game made for the Microgaming network and released in 2022. The studio combines two familiar slot ideas here, lucky sevens and a leprechaun at the end of the rainbow, and ties them together with Respin Insanity, a respin engine it presents under its own trademark.
How does the 777 Rainbow Respins slot pay?
Wins are counted along 127 fixed lines across the 4x7 grid, and any win is then spun again in the highlighted area before the next full spin. Locked 2x multipliers from the leprechaun can double what those respins add. Inside the four bonus spins the same process repeats, with the leprechaun handing out multipliers as the round goes on.
What is the stake range in 777 Rainbow Respins?
Crazy Tooth lists a minimum bet of 0.20 and a maximum of 40.00 in the studio’s range. In Great Britain the upper end does not apply, because stakes on online slots are capped at £5 a spin, or £2 for players aged 18 to 24, whatever range a game supports elsewhere.
Related guides
Checked on 4 November 2026 against Crazy Tooth Studio’s 777 Rainbow Respins game page and one-page game sheet, LCB’s report on Microgaming’s March 2022 releases and World Casino News’s report of the same line-up, the SlotCatalog, VegasSlotsOnline and LCB game records, Red Tiger’s 777 Strike game page and the SlotCatalog record of that game, and the Gambling Commission’s stake-limit guidance and remote technical standards. How we research and check our guides: our editorial policy.