IMHO.

Games like CosmoDreamer

If CosmoDreamer is your kind of game, the closest matches are Like Dreamer, REDNEG ALLSTARS SWING-BY EDITION and Bullet Hell Monday: Black — picked from the ranked list below. Reviewers single out its chill, cozy 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.

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About CosmoDreamer: From the popular free game "Outside" comes a dreamy and cute barrage shmups. The visuals are colorful, cute and fantastic, and the game features active gameplay.

2020Action7.99 USDDeck PlayableWindowsby あうとさいど
CosmoDreamer — Steam game cover
Players highlight
Bullet patterns feel hypnotic and creativeCozy dreamlike aesthetic contrasts with intense gameplayDeep build customization with meaningful choicesChillCozyRelaxing

Players who liked CosmoDreamer also play

Steam players who put hours into CosmoDreamer 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. Like Dreamer

    WHY THIS

    Shares scoring system and a chill mood with CosmoDreamer.

    Top pick for CosmoDreamer fans by collaborative filtering across millions of Steam libraries. Shares Action with CosmoDreamer.

    A pop and cute bullet-hell shooting game from Cosmo Dreamer "Outside". Both beginners and experts can enjoy speedy and active playing.

    2022Action13.99 USDDeck PlayableSteam ↗
  2. REDNEG ALLSTARS SWING-BY EDITION

    WHY THIS

    Shares practice mode and a cozy mood with CosmoDreamer.

    Second-strongest match for CosmoDreamer fans by collaborative filtering across millions of Steam libraries. Shares Action with CosmoDreamer.

    Cosmo Dreamer Like Dreamer "Outside" is a fantastical and comical boss-rush bullet-hell shooting game remade from a free game. Both beginners and experts can enjoy the intense boss rush.

    2024Action10.99 USDDeck PlayableSteam ↗
  3. Bullet Hell Monday: Black

    WHY THIS

    Shares scoring system with CosmoDreamer.

    Third-strongest match for CosmoDreamer fans by collaborative filtering across millions of Steam libraries. Shares Action with CosmoDreamer.

    This is a high-difficulty bullet hell shooting game and a sequel to "Bullet Hell Monday." It offers an exciting experience for players who demand advanced skills and precise strategies. As a common system, six types of special weapons are equipped, expanding the player's tactical range.

    2023ActionIndie8.99 USDSteam ↗
  4. Vampire Memories - 吸血鬼的回忆

    WHY THIS

    Ranked #4 for CosmoDreamer fans by collaborative filtering across millions of Steam libraries. Shares Action with CosmoDreamer.

    This is a SHMUP/STG game that allows anyone to experience and play happily; Games that will allow you to enjoy playing; Games that can make it easy for you to get started with low technical requirements; SHMUP/STG games that have completely different experiences from other games;

    2024ActionIndieCasual4.99 USDSteam ↗
  5. Polyfury

    WHY THIS

    Ranked #5 for CosmoDreamer fans by collaborative filtering across millions of Steam libraries. Shares Action with CosmoDreamer.

    You thought geometry was difficult? Now it's got a gun! Face the fury of the Seven Deadly Shapes and blast your way through a barrage of bullets and lasers in this highly accessible bullet hell.

    2023ActionIndieCasual8.99 USDSteam ↗
  6. Space War: Infinity

    WHY THIS

    Ranked #6 for CosmoDreamer fans by collaborative filtering across millions of Steam libraries. Shares Action with CosmoDreamer.

    Vertical semi-procedural shmup with upgrades, real-time enemy waves, and infinite replayability. Level up your ship, unlock 20+ weapons, defeat 5 bosses, and survive endless bullet-hell combat.

    2019ActionIndieCasual2.99 USDSteam ↗
  7. Bullet Hell Monday

    WHY THIS

    Ranked #7 for CosmoDreamer fans by collaborative filtering across millions of Steam libraries. Shares Action with CosmoDreamer.

    Beginner Welcome Bullet Hell Shooter. "Chapter Mode", which is starting from a simple stage and gradually becoming more difficult, is recommended for beginners. Once you get used to bullet hell, let's experience full-scale bullet hell in "Challenge Mode".

    2022ActionIndie11.99 USDSteam ↗
  8. Sektori

    WHY THIS

    Ranked #8 for CosmoDreamer fans by collaborative filtering across millions of Steam libraries. Shares Action with CosmoDreamer.

    Sektori is an intense, fast paced twin-stick shooter infused with hard hitting techno music. A game where the high-adrenaline gameplay, visuals, and music come together to transport you into another state of consciousness.

    2025Action14.99 USDDeck VerifiedSteam ↗

Reviewers mention these as similar to CosmoDreamer

Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.

  1. NiGHTS Into Dreams

    WHY THIS

    Shares a whimsical mood with CosmoDreamer.

    Reviewers of CosmoDreamer cross-mention this title as a similar play.

    Slip off into the dream world and go on an aerial adventure as NiGHTS in this classic Saturn remake. Collect Ideya (colored orbs), rack up points, and battle bosses to help Elliot and Claris save Nightopia from Wizeman the Wicked.

    2012AdventureDeck PlayableSteam ↗
  2. Danmaku Unlimited 2

    WHY THIS

    Reviewers of CosmoDreamer cross-mention this title as a similar play. Shares Action with CosmoDreamer.

    Classic Japanese style vertical manic shooting action! Shoot, dodge and explode your way through the second entry in the critically acclaimed Danmaku Unlimited series. Battle through nail-biting bullet patterns and compete for dominance on the global leaderboard!

    2014ActionIndie4.99 USDDeck PlayableSteam ↗
  3. Danmaku Unlimited 3

    WHY THIS

    Reviewers of CosmoDreamer cross-mention this title as a similar play. Shares Action with CosmoDreamer.

    Take to the skies once again as the last defender of humanity against overwhelming odds! Lovingly built to be enjoyed by newcomers and genre veterans alike, Danmaku Unlimited 3 is a perfect medley of the best aspects of classic bullet hell shooters wrapped up in a modern and approachable package.

    2017ActionIndie9.99 USDDeck PlayableSteam ↗
  4. Touhou Mystia's Izakaya

    WHY THIS

    Shares a chill mood with CosmoDreamer.

    Reviewers of CosmoDreamer cross-mention this title as a similar play.

    A brand new pixel art restaurant simulator based on the Touhou Project! Play as Mystia, the owner of a small izakaya. Collect ingredients by day, cater to the customers by night, learn recipes from familiar characters, and become the best izakaya owner in all of Gensokyo!

    2021IndieSimulationRPG4.19 USDDeck VerifiedSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below CosmoDreamer at current Steam store prices.

  1. Titanfall® 2

    WHY THIS

    Priced ~44% under CosmoDreamer on Steam right now. Shares Action with CosmoDreamer.

    Respawn Entertainment gives you the most advanced titan technology in its new, single player campaign & multiplayer experience. Combine & conquer with new titans & pilots, deadlier weapons, & customization and progression systems that help you and your titan flow as one unstoppable killing force.

    2020Action4.49 USDDeck PlayableSteam ↗
  2. POSTAL 2

    WHY THIS

    Priced ~88% under CosmoDreamer on Steam right now. Shares Action with CosmoDreamer.

    Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  3. Buckshot Roulette

    WHY THIS

    Priced ~63% under CosmoDreamer on Steam right now. Shares Action with CosmoDreamer.

    Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!

    2024ActionIndieSimulation2.99 USDDeck PlayableSteam ↗
  4. Blood and Bacon

    WHY THIS

    Priced ~88% under CosmoDreamer on Steam right now. Shares Action with CosmoDreamer.

    This Co-op Shooter , has Day and Night levels, multiple maps, players will take on 25 enemy types and numerous bosses, like Gargantuan Monsters and Minibosses every 10 days as you explore, shoot and run for your life against the onslaught of porcine monstrosities.

    2016ActionAdventureCasual0.99 USDSteam ↗
  5. Crypt of the NecroDancer

    WHY THIS

    Priced ~63% under CosmoDreamer on Steam right now. Shares Action with CosmoDreamer.

    Crypt of the NecroDancer is an award winning hardcore roguelike rhythm game. Move to the music and deliver beatdowns to the beat! Groove to the epic Danny Baranowsky soundtrack, or select songs from your own MP3 collection!

    2015ActionIndieRPG2.99 USDDeck VerifiedSteam ↗
  6. Super Hexagon

    WHY THIS

    Priced ~63% under CosmoDreamer on Steam right now. Shares Action with CosmoDreamer.

    Super Hexagon is a minimal action game by Terry Cavanagh, with music by Chipzel.

    2012ActionIndie2.99 USDDeck VerifiedSteam ↗
  7. STAR WARS™ Republic Commando™

    WHY THIS

    Priced ~69% under CosmoDreamer on Steam right now. Shares Action with CosmoDreamer.

    You are the leader of an elite squad of Republic Commandos, your mission is to infiltrate, dominate, and ultimately, annihilate the enemy. Your squad will follow your orders and your lead, working together as a team - instinctively, intelligently, instantly. You are their leader. They are your weapon.

    2009Action2.49 USDDeck PlayableSteam ↗
  8. Streets of Rogue

    WHY THIS

    Priced ~50% under CosmoDreamer on Steam right now. Shares Action with CosmoDreamer.

    Fight, sneak, and hack your way through randomly generated cities. It's like Nuclear Throne meets Deus Ex, mixed with the anarchy of GTA. Rogue-lite meets immersive sim, and goes completely insane.

    2019ActionIndieAdventure3.99 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.

    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. Helltaker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Helltaker is a short game about sharply dressed demon girls.

    2020IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  3. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with CosmoDreamer.

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

    2018ActionIndieFree To PlayFreeSteam ↗
  4. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  5. The Murder of Sonic the Hedgehog

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  6. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with CosmoDreamer.

    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 ↗
  7. Our Life: Beginnings & Always

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    A twenty-dollar bill, four summers, fifteen years, and a one of a kind life. Create an experience that’s all your own in this near-fully customizable visual novel where you grow from childhood to adulthood with the lonely boy next door.

    2020IndieFree To PlayCasualFreeSteam ↗
  8. Awaria

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with CosmoDreamer.

    Awaria is a short game about working in haunted maintenance tunnels.

    2024ActionIndieFree To PlayFreeDeck PlayableSteam ↗

Frequently asked about CosmoDreamer

Does CosmoDreamer run on Steam Deck?
CosmoDreamer 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 CosmoDreamer cost?
CosmoDreamer is listed on Steam at 7.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to CosmoDreamer?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside CosmoDreamer are Like Dreamer, REDNEG ALLSTARS SWING-BY EDITION, Bullet Hell Monday: Black.
Who developed CosmoDreamer?
CosmoDreamer was developed by あうとさいど.

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 CosmoDreamer.

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

28 Games Like CosmoDreamer — Ranked for 2026 · imho.run