Top 5 RTP Slots from Microgaming in 2021
Microgaming was one of the leading online gaming developers and released one of the first internet slots.
Microgaming’s catalogue features more than 500 casino games, some of which have theoretical RTP (return-to-player) figures above the 96% benchmark cited for video slots. The highest returns are not found in the million Euro-Dollar WowPot or Mega Moolah jackpot games. Their prize pools are funded by taking a share of bets, which reduces RTP.
Setting those million Euro-Dollar jackpots aside, which Microgaming Slots: Features, RTP and Jackpot Games were listed with the highest RTP in 2021?
Here are the five picks.
1. Retro Reels (97.5%)

Retro Reels is a long-running game that remained a popular online casino pick in 2021. It was Microgaming’s first video slot to offer optional re-spins. The standard game has a 96.02% RTP; choosing ‘Base Game with Re-spin’ raises the theoretical figure to 97.5%. That higher return depends on the re-spin option.
After each spin, you can pay a set fee—less than the minimum spin bet—to re-spin any of the 5 reels. Any resulting win pays out. Other listed features include a 440,000-coin jackpot, up to 25 free spins with re-triggers and doubled wins, plus a scatter prize of up to 100x the spin bet.
2. Retro Reels Extreme Heat (97.5%)

This follow-up to Retro Reels lists a base-game RTP of 96.66%, rising to 97.5% when the ‘Base Game with Re-spin’ option is selected. It has 30-pay lines and a fiery theme, with ‘$’ signs, fruit, bells and red 7s among its symbols. Like the earlier game, it offers a 440,000-coin jackpot. What else is included?
Players can get up to 20 free spins, with doubled wins and the chance to trigger the feature again. Find out more about this free spins bonus. The wild can also contribute to combinations, while a scatter multiplies the spin bet by 2, 3, 4, or 5 wherever it lands on the reels.
3. Wild Orient (97.49%)

Wild Orient has an oriental setting and is described as an early 243-ways-to-win video slot without pay lines. It was also the first 243-ways game to use the optional re-spins feature found in the Retro Reels titles above.
Its base-game RTP is 96.52%; choosing ‘Base Game with Re-spin’ raises the listed RTP to 97.49%. Other features include scatters that multiply the spin bet and free spins with triple wins and re-triggers. Together, these features offer the chance to win up to 60,000 coins.
4. Summer Holiday (97.14%)

Summer Holiday creates a lakeside setting with transparent reels, 100 pay lines and symbols inspired by holiday activities. Its theoretical RTP is 97.14%. Features include a wild symbol and a pick-a-prize bonus, which may award another free-spins round or a mystery prize. A stacked wild can pay up to 750,000; with triple wins during free spins and a stacked wild filling every reel position, the possible payout is 2,250,000.
5. Immortal Romance (96.96%)

Microgaming’s all-time most popular slot is listed just below the 97% RTP mark. Its eerie setting, story and features helped it hold the number 1 spot for a long time. It was also part of the Mega Moolah collection, although the jackpot version’s RTP drops to 86.75% for a chance to win a multi-million Euro-Dollar prize.
Immortal Romance combines 243 ways to win with 4 Chamber of Spins bonus games that unlock as the feature progresses. Combination wins can receive a 5x multiplier. The listed maximum win is 12,000x the bet and can be triggered when all 5 reels become wild reels. Wilds double each winning combination they join, and the ‘Vine feature’ can add multiple wildcard symbols at any time.
More High-RTP Microgaming Slots
Other Microgaming games have RTP figures below 97%. Examples include Alaskan Fishing (96.63%), Thunderstruck II (96.65%) and Girls with Guns (96.55%). All 3 popular slots are listed above the average RTP cited in the article.
Evan Carrington brings more than 12 years of experience in the iGaming industry, with a focus on reviewing online casinos, assessing slot games and examining player safety. Their work covers casino licensing, RTP, volatility, bonus terms and withdrawal policies. Drawing on practical testing and independent research, Evan provides clear, evidence-based reviews to help players understand gambling platforms, their features and possible risks.