Single-player games like Summer Islands
Below are 13 single-player Steam games similar to Summer Islands, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Summer Islands page.
Ranked picks
- 1
Parkitect
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Indie with Summer Islands.
Parkitect is a business simulation game that charges you with the construction and management of theme parks! Bringing back the best of classic theme park games with many new features and content on top. Now supports online co-op with up to 8 players!
- 2
Pioneers of Pagonia
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Simulation with Summer Islands.
Rebuild hope in a world that was lost in the fog. Lead your Pioneers across the isles of Pagonia, unite scattered tribes, raise thriving communities and discover the history of your people as you reclaim your world in the new story campaign.
- 3
Mad Tower Tycoon
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Indie with Summer Islands.
Design your own skyscraper with more than 100 Floors. Rent offices, apartments or shops and build a financially lucrative skyscraper. Build cinemas, bars or a theater to satisfy your visitors and create an effective transport system with elevators and stairs.
- 4
Mad Games Tycoon 2
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Indie with Summer Islands.
Start your own game development studio in 1976. Build your own offices, production facilities and server rooms. Develop the games of your dreams and produce the next next-gen console. Rise from a small garage company to a huge corporation.
- 5
Ale Abbey - Monastery Brewery Tycoon
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Indie with Summer Islands.
Build and expand your monastery, craft recipes and brew holy ales in this unique brewery tycoon. No pre-made recipes in Ale Abbey, oh no. It's a canvas for true beer alchemists. It's as simple as: brew, sip, repeat. Welcome to Ale Abbey!
- 6
Parkasaurus
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Simulation with Summer Islands.
Parkasaurus is a dinosaur tycoon management simulation where you take care of your dinosaurs by constructing well-designed exhibits, researching specialized technologies, and maximizing profits to expand into the ultimate dinosaur theme park. Do you favor development for guests or your dinosaurs?
- 7
Rec Center Tycoon - Management Simulator
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Indie with Summer Islands.
Design, build and manage a recreation center! Host fitness classes, build swimming pools, arcade & entertainment areas, build event rooms to host parties & much more. With endless customisation, Rec Center Tycoon goes much more in-depth than your average business management simulator.
- 8
SimCasino
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Indie with Summer Islands.
Modern Casino Tycoon Simulation in full 3D glory. Build the casino. Set the odds. Expand into a luxury hotel/casino or go cheap & extract max profits. Keep the vault secure at all times, and beware of criminals & cheaters!!
- 9
RollerCoaster Tycoon World™
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Simulation with Summer Islands.
RollerCoaster Tycoon World™ is the newest installment in the legendary RCT franchise. This next-generation theme park simulation and building game includes fan-favorite features along with incredible new advancements!
- 10
Мухосранск | Russian City Sim
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Indie and Simulation with Summer Islands.
The atmosphere of the nuclear wasteland.
- 11
Idle Transport Tycoon
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Indie and Simulation with Summer Islands.
Enjoy fast, stress-free management! Build your service network, merge houses, and transport guests via train & ropeway. Upgrade facilities, hire staff, and climb the leaderboards in this bite-sized tycoon experience designed to be finished in one sitting; but still runs well in background.
- 12
Holiday Island
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Indie and Simulation with Summer Islands.
There will be sand. There will be girls. There will be sun. And yes, there will be nudity.
- 13
Transport Tycoon Deluxe
Single-player alternative to Summer Islands — playable solo, no multiplayer required. Shares Strategy and Simulation with Summer Islands.
Transport Tycoon Deluxe challenges you to become the ultimate Transport Tycoon by creating a transit empire. Build a network of trains, trucks, ships, planes, and more to grow your business, make money, and fend off rivals in this 1995 building sim from Chris Sawyer.