- Casual
- Indie
- Simulation
- Strategy
Game
Summer Islands
Be the right businessman and build a unique holiday paradise. Become rich and enlarge your paradise. But be on the lookout for your competitors and the unpredictable weather. Summer Islands – In this diversified economic simulation you have the possibility to build an indescribable holiday paradise. Build cottages, villas or expensive hotels, right on the beach or in the mountains. When a building has been completed, the tourists can come by boat or plane. Then the difficulty begins: build bars, discos, golf courses, supermarkets and many other buildings, which are popular by the tourists a
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.
About Summer Islands
- Released
- January 2025
- Developer
- Marttalin Games
- Engine
- Pixi
- Platforms
- Linux · PC (Microsoft Windows) · Mac
Where to get it
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsSummer Islands Update 1.0.5{STEAM_CLAN_IMAGE}/32008835/42001e0e2fa946c7da1d50f040b826f46dd48ccc.png 🌴 Summer Islands – Update 1.0.5 Hello everyone, with Update 1.0.5 we are fixing several minor issues and adding a new language to the game. 🛠️ Bug Fixes Fixed a performance issue where snow and leaves did not disappear properly and kept reappearing Fixed inconsistencies in building information (positive/negative effects)...
- Community AnnouncementsSummer Islands Update 1.0.4{STEAM_CLAN_IMAGE}/32008835/42001e0e2fa946c7da1d50f040b826f46dd48ccc.png Polishing Your Islands – Update 1.0.4 Hello everyone, with Update 1.0.4, we mainly focused on many small and large issues that were affecting your experience in the game. This update is primarily about bug fixes, stability, performance, and overall polish. ⛰️ Terraforming with Undo Function We fixed several issues related...
- Community Announcements🌸 Spring Is Almost Here – Summer Islands Update!{STEAM_CLAN_IMAGE}/32008835/42001e0e2fa946c7da1d50f040b826f46dd48ccc.png 🌸 A Touch of Spring 🌸 Hello everyone, Spring is almost here — and Summer Islands is getting warmer too. We’ve been working on the next update for a while, and now it’s finally time. We’re happy to present v1.0.3, featuring: {STEAM_CLAN_IMAGE}/32008835/14a61e3ce0c55427e51c4c9673b4c0ecd8b6f51a.png 🌸 More seasonal vibes (t...
- Community AnnouncementsBlog post: Christmas 2025{STEAM_CLAN_IMAGE}/32008835/42001e0e2fa946c7da1d50f040b826f46dd48ccc.png Hello everyone, As another year comes to an end, we’d like to take a moment to say thank you. We wish you a peaceful holiday season, relaxing Christmas days, and a wonderful start to the new year. We hope you, your family, and your friends are doing well. 2025 has been a year full of great encounters, inspiring conversatio...
- Community Announcements🌸 Spring Is Coming – A Sneak Peek at the Next Summer Islands Update!🌸 A Touch of Spring – A Preview of the Next Update! 🌸 The next version of Summer Islands is already in the works – and while it may take a few more weeks until release, we’d love to give you a little sneak peek already! 😎🌴 While we’re busy polishing and improving, lots of exciting new features are growing behind the scenes to make your islands even more lively: 🌦️ Seasonal Atmosphere & New...
- Community AnnouncementsCampaign Part 2 is here with version 1.0.2 🏝️{STEAM_CLAN_IMAGE}/32008835/42001e0e2fa946c7da1d50f040b826f46dd48ccc.png Ladies and Gentlemen, welcome to Summer Islands! ✈️🌴 We hope your journey is going smoothly – because now Part 2 is taking off! 😎🌊 But before you sit back and relax, we present the hottest news for you: 🔧 Improvements & New Features 🔧 🏝️ Campaign Part 2 The journey isn’t over yet: We’ve created 5 brand-new levels for...
- Mods indexed
- 6
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
of 18 on Steam Workshop
Most downloaded
Measured from the source's own counts, summed across every release.
- Easyflattest600 Size 1 Player 1 Events30 downloads
- virushexal_Title_2020-07-07Workshopmap virushexal 2020-07-0722 downloads
- One Island 300x300 flat300 Größe 1 Spieler 1 Events20 downloads
- Camping Guru Ijust camping buildings and later few hotels. Have fun!19 downloads
- Haile_Titel_2025-02-151300 Größe 1 Spieler 1 Events16 downloads
- accle7668989_Title_2025-01-30300 Size 1 玩家 1 Events10 downloads
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Why Summer Islands mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Summer Islands mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.