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Summer Islands

Summer Islands is a holiday real-time strategy business simulator. Be the right businessman, build your holiday paradise and grab the money from your tourists. Play alone, with your friends and with computer enemies and survive natural disasters without going insolvent.

Steam Page
Release
January 25, 2025
1 year and 189 days ago
Steam Reviews
Very Positive197 reviews81.2%

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Updated: Jul 16, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 16, 2026Publisher scaleThe operating scale of the game's publisher.
Updated: Jul 16, 2026Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Summer Islands and Marttalin Games funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for Summer Islands and Marttalin Games?Creative controlWho appears to retain creative control of the game.
Updated: Jul 16, 2026Release statusWhether and how the game has been released.

Media

12 items

About the Game

Create almost infinite numbers of maps with different seeds. One island, several or the Summer Islands mode. From small 100x100 maps up to 1500x1500 maps. From high mountains or just sand islands. Everybody finds his small island in the wide ocean or in the big archipelagos.

Build cabins, villas or expensive hotels directly on the beach or in the mountains. When a building is finished, tourists can come by boat or plane. The tourists want to be preserved. Build bars, discos, golf courses, supermarkets and many other buildings that are popular with tourists and will make you rich as the owner.

Buy new buildings from a wide range of building types. From houses and hotels to restaurants, stores, parks attractions etc. Here you can distinguish between mass tourists and luxury tourists. Buildings with luxury tourists earn you more money, but are expensive and have a lower capacity. Also note that mass tourists and luxury tourists have different preferences as to which buildings are nearby.

Borrow money or pay off your debts. Go out and advertise, or take out insurance. Check if your buildings are doing well and you can raise the rent. Hire consultants to protect you from sabotage, for example. Or would you rather unlock more sabotage? That is entirely up to you.

Unfortunately there are also natural disasters that can destroy your buildings. Whether tornado, earthquake or meteorite, everything is possible.

In quiet times the competition comes from your enemy and expands over your land. Maybe there are some sabotage possibilities!

In the Map Editor you can not only create your perfect map. You can also fill it with events. Which buildings should be unlocked under which conditions. A match where you cannot build roads or there is no minimap? You want natural disasters to occur under certain conditions at a certain place? Try it out!