IMHO.

Games like Under A New Sun

If Under A New Sun is your kind of game, the closest matches are Project Castaway, Satisfactory and Valheim — picked from the ranked list below. Reviewers single out its atmospheric, contemplative and relaxing. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

Get personalized picks →

About Under A New Sun: While searching for a new home, an unexpected failure in your ship has left you stranded on a planet surprisingly similar to Earth. Discover a vast open world, hunt for food, develop technologies, and build yourself a new home to survive!

2023IndieAdventureSimulationEarly Access17.99 USDDeck PlayableWindowsby New Horizon Games
Under A New Sun — Steam game cover
Players highlight
Boat building and sailing mechanicsDay night cycle and visuals are stunningExploration heavy with few hand holding instructionsAtmosphericContemplativeRelaxing

Players who liked Under A New Sun also play

Steam players who put hours into Under A New Sun also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Project Castaway

    WHY THIS

    Top pick for Under A New Sun fans by collaborative filtering across millions of Steam libraries. Shares Adventure with Under A New Sun.

    Project Castaway is a survival crafting title set in the Pacific Ocean. Live the life of a stranded castaway, with only yourself - and the island's inhabitants - for company! Sail the ocean, hunt, explore unique islands and gather resources as you fight for survival.

    2026ActionAdventureRPG10.99 USDSteam ↗
  2. Satisfactory

    WHY THIS

    Shares a contemplative mood with Under A New Sun.

    Second-strongest match for Under A New Sun fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Under A New Sun.

    Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!

    2024StrategyIndieAdventure39.99 USDDeck VerifiedSteam ↗
  3. Valheim

    WHY THIS

    Shares an atmospheric mood with Under A New Sun.

    Third-strongest match for Under A New Sun fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Under A New Sun.

    A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!

    2021ActionIndieAdventure19.99 USDDeck VerifiedSteam ↗
  4. Green Hell

    WHY THIS

    Ranked #4 for Under A New Sun fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Under A New Sun.

    Plunge into the open-world survival simulation set in the extreme conditions of the uncharted Amazon jungle. Use real-life survival techniques to craft, hunt, fight, and gather resources, set a makeshift shelter, or raise a fortress. Survive alone or team up with your friends and challenge the jungle together.

    2019ActionIndieAdventure24.99 USDDeck VerifiedSteam ↗
  5. Sunkenland

    WHY THIS

    Shares an atmospheric mood with Under A New Sun.

    Ranked #5 for Under A New Sun fans by collaborative filtering across millions of Steam libraries. Shares Indie and Early Access with Under A New Sun.

    Get ready for a Waterworld-themed survival game with modular base building, sunken city scavenging, crafting, base defense, and invasions of NPC clans for resources and territory. Ready for the water apocalypse?

    2023ActionIndieEarly Access19.99 USDDeck PlayableSteam ↗
  6. Soulmask

    WHY THIS

    Shares an atmospheric mood with Under A New Sun.

    Ranked #6 for Under A New Sun fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Under A New Sun.

    Don the Ancient Mask. Wield the power of gods. Possess any of your tribespeople, recruit followers, and build a thriving automated civilization. Survive, expand, and forge your own legacy across a vast ancient open world — together with friends.

    2026IndieAdventureSimulation29.99 USDDeck PlayableSteam ↗
  7. Stranded Deep

    WHY THIS

    Shares an atmospheric mood with Under A New Sun.

    Ranked #7 for Under A New Sun fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Under A New Sun.

    Take the role of a plane crash survivor stranded somewhere in the Pacific Ocean. Come face to face with some of the most life threatening scenarios that will result in a different experience each time you play. Scavenge. Discover. Survive.

    2022IndieAdventure19.99 USDDeck PlayableSteam ↗
  8. Raft

    WHY THIS

    Shares an atmospheric mood with Under A New Sun.

    Ranked #8 for Under A New Sun fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Under A New Sun.

    Raft™ throws you and your friends into an epic oceanic adventure! Alone or together, players battle to survive a perilous voyage across a vast sea! Gather debris, scavenge reefs and build your own floating home, but be wary of the man-eating sharks!

    2022IndieAdventureSimulation19.99 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Under A New Sun at current Steam store prices.

  1. Terraria

    WHY THIS

    Priced ~44% under Under A New Sun on Steam right now. Shares Indie and Adventure with Under A New Sun.

    Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!

    2011ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗
  2. Garry's Mod

    WHY THIS

    Priced ~72% under Under A New Sun on Steam right now. Shares Indie and Simulation with Under A New Sun.

    Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.

    2006IndieSimulationCasual4.99 USDDeck PlayableSteam ↗
  3. Lethal Company

    WHY THIS

    Priced ~44% under Under A New Sun on Steam right now. Shares Indie and Adventure with Under A New Sun.

    A co-op horror about scavenging at abandoned moons to sell scrap to the Company.

    2023ActionIndieAdventure9.99 USDDeck PlayableSteam ↗
  4. People Playground

    WHY THIS

    Priced ~44% under Under A New Sun on Steam right now. Shares Indie and Simulation with Under A New Sun.

    Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.

    2019ActionIndieSimulation9.99 USDDeck PlayableSteam ↗
  5. Portal 2

    WHY THIS

    Priced ~44% under Under A New Sun on Steam right now. Shares Adventure with Under A New Sun.

    The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

    2011ActionAdventure9.99 USDDeck VerifiedSteam ↗
  6. Undertale

    WHY THIS

    Priced ~44% under Under A New Sun on Steam right now. Shares Indie with Under A New Sun.

    UNDERTALE! The RPG game where you don't have to destroy anyone.

    2015IndieRPG9.99 USDDeck PlayableSteam ↗
  7. Vampire Survivors

    WHY THIS

    Priced ~72% under Under A New Sun on Steam right now. Shares Indie with Under A New Sun.

    Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!

    2022ActionIndieRPG4.99 USDDeck VerifiedSteam ↗
  8. R.E.P.O.

    WHY THIS

    Priced ~61% under Under A New Sun on Steam right now. Shares Early Access with Under A New Sun.

    An online co-op horror game with up to 6 players. Locate valuable, fully physics-based objects and handle them with care as you retrieve and extract to satisfy your creator's desires.

    2025ActionEarly Access6.99 USDDeck PlayableSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Under A New Sun.

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Life is Strange - Episode 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Adventure with Under A New Sun.

    Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.

    2015ActionAdventureFreeDeck PlayableSteam ↗
  3. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Under A New Sun.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  4. ENA: Dream BBQ

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Under A New Sun.

    Experience surreal environments and inexplicable characters as ENA in a new wild world.

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  5. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Under A New Sun.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  6. The Looker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Under A New Sun.

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableSteam ↗
  7. missed messages.

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Under A New Sun.

    ‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.

    2019IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  8. NGU IDLE

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Under A New Sun.

    NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up!

    2019IndieAdventureSimulationFreeDeck PlayableSteam ↗

Plays great on Steam Deck

Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

  1. Satisfactory

    WHY THIS

    Shares a contemplative mood with Under A New Sun.

    Deck Verified — runs on Steam Deck out of the box. Shares Indie and Adventure with Under A New Sun.

    Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!

    2024StrategyIndieAdventure39.99 USDDeck VerifiedSteam ↗
  2. Valheim

    WHY THIS

    Shares an atmospheric mood with Under A New Sun.

    Deck Verified — runs on Steam Deck out of the box. Shares Indie and Adventure with Under A New Sun.

    A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!

    2021ActionIndieAdventure19.99 USDDeck VerifiedSteam ↗
  3. Green Hell

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Indie and Adventure with Under A New Sun.

    Plunge into the open-world survival simulation set in the extreme conditions of the uncharted Amazon jungle. Use real-life survival techniques to craft, hunt, fight, and gather resources, set a makeshift shelter, or raise a fortress. Survive alone or team up with your friends and challenge the jungle together.

    2019ActionIndieAdventure24.99 USDDeck VerifiedSteam ↗

Frequently asked about Under A New Sun

Does Under A New Sun run on Steam Deck?
Under A New Sun is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
How much does Under A New Sun cost?
Under A New Sun is listed on Steam at 17.99 USD (current store price; Steam sales may reduce this temporarily).
Does Under A New Sun have multiplayer or co-op?
Yes — Under A New Sun supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, Co-op).
What games are most similar to Under A New Sun?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Under A New Sun are Project Castaway, Satisfactory, Valheim.
Who developed Under A New Sun?
Under A New Sun was developed by New Horizon Games.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Under A New Sun.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.