IMHO.

Games like UDONGAIN

If UDONGAIN is your kind of game, the closest matches are MIHASHIRA, Ayako's Mission and IRREVERENCE — picked from the ranked list below. 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 UDONGAIN: Simple primitive shooter. just move and shoot! Touhou Project fan game!. featuring 26 playable characters, two game modes, and randomly changing patterns!

2026ActionIndieWindowsby leimonya
UDONGAIN — Steam game cover

Players who liked UDONGAIN also play

Steam players who put hours into UDONGAIN 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. MIHASHIRA

    WHY THIS

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

    A 2D top-down arena shooter. A freely scrolling shooter. Pixel graphics reminiscent of the SNES. Easy to control with the directional pad, two shot buttons, and a bomb button. Make full use of your two shots to smash through enemies.

    2026ActionIndie7.19 USDSteam ↗
  2. Ayako's Mission

    WHY THIS

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

    Ayako's Mission is a 2D Top-Down Shoot'em Up game based on the story of the war breaking out between the two territories called, AY Corp and ATO Corp. where you must defend your territory against the invaders.

    2023ActionIndieCasual0.99 USDSteam ↗
  3. IRREVERENCE

    WHY THIS

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

    IRREVERENCE is a fast paced top down shooter. Run, shoot, and dive into intense combat with a variety of strange foes in this quirky hotline miami like.

    ActionSteam ↗
  4. Fox Flare Night

    WHY THIS

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

    Shape-shifting Kitsune Mio battles the mischievous Tanuki army in this fast-paced, comedic side-scrolling shooter! Unleash powerful yōjutsu and transformations to dodge bullet barrages. Packed with modes for both casual and hardcore players, offering plenty of content to master!

    ActionSteam ↗
  5. Bot Vice

    WHY THIS

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

    Show off your skills & reflexes in this frantic gallery shooter action arcade, filled with bullets, bots and explosions! You play as Erin Saver, carrying out her personal vendetta against the criminal Wildbots.

    2016ActionIndieAdventure9.99 USDDeck PlayableSteam ↗
  6. Black Market of Bulletphilia ~ 100th Black Market.

    WHY THIS

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

    東方Project第18.5弾。上海アリス幻樂団による弾幕シューティング! 市場は2種類あった? 魔理沙が闇市場の調査(&カード蒐集)に大奮闘! アビリティカードを駆使して遊ぶ、ハイスピードでブラックなシューティング幻想!

    2022ActionIndie14.99 USDDeck PlayableSteam ↗
  7. Pocky & Rocky Reshrined

    WHY THIS

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

    The original cute and hardcore shrine maiden shooter is now available on Steam! Completely new game, a sequel to the home original "Pocky&Rocky" (Super Nintendo Entertainment System)! The adventures of Pocky&Rocky begin once again.

    2023Action29.99 USDDeck VerifiedSteam ↗
  8. TouHou Makuka Sai ~ Fantastic Danmaku Festival Part III

    WHY THIS

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

    "Touhou Makuka Sai ~ Fantastic Danmaku Festival Part III" is a bullet hell shooting game with a distinctive, glamorous presentation style. It is the third game in the Touhou Makuka Sai series. The strange moon seems to hide a new conspiracy. Charge into the deep world on the eternal night!

    2025ActionIndie13.99 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 UDONGAIN.

    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 Action with UDONGAIN.

    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. Helltaker

    WHY THIS

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

    Helltaker is a short game about sharply dressed demon girls.

    2020IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  4. Bongo Cat

    WHY THIS

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

    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. Shares Indie with UDONGAIN.

    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 and Indie with UDONGAIN.

    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. STRAFTAT

    WHY THIS

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

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  8. Sheepy: A Short Adventure

    WHY THIS

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

    A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.

    2024IndieAdventureFree To PlayFreeDeck PlayableSteam ↗

More from leimonya

Other recommendable Steam games by leimonya, ranked by review count so the studio's hits land first.

  1. PANDARA

    WHY THIS

    Another title from leimonya, the studio behind UDONGAIN. Shares Action and Indie with UDONGAIN.

    Simple 2D scrolling shooter. Button controls are shot and speed switching. English and Japanese subtitles are available, and the UI is English only. Defeating enemies and gaining experience levels up your shot. The more mistakes you make, the better your defense.

    2019ActionIndie1.99 USDSteam ↗
  2. JAGD LANZER

    WHY THIS

    Another title from leimonya, the studio behind UDONGAIN. Shares Action and Indie with UDONGAIN.

    Destroy the legions of machinists! An easy to control mechanic 2D action game that attacks automatically when an enemy is in range. Customize your mecha to suit your needs. The key to success is to manage energy while standing around.

    2019ActionIndie1.99 USDSteam ↗
  3. GUN DOG ROCK RAPID

    WHY THIS

    Another title from leimonya, the studio behind UDONGAIN. Shares Action and Indie with UDONGAIN.

    Super simple 2D shooter game! Use the two types of shots to push forward.Kick out the swarming zakos and take on the powerful bosses.7 crazy worlds are waiting for your cat!?

    2020ActionIndie1.99 USDSteam ↗
  4. Blue fencer Resurrection

    WHY THIS

    Another title from leimonya, the studio behind UDONGAIN. Shares Action with UDONGAIN.

    The Devil's Castle has 8 stages full of powerful enemies.Invincible dash slash, powerful slash, 6 types of sub weapons.Make full use of various techniques to overcome the labyrinth !!

    2020Action1.99 USDSteam ↗
  5. Nekoba RocknRoll

    WHY THIS

    Another title from leimonya, the studio behind UDONGAIN. Shares Action with UDONGAIN.

    The ultimate 2D action game where a cat with a bazooka fights! A variety of missions await you and your cat. Regain love and peace!

    2021Action2.99 USDSteam ↗

Frequently asked about UDONGAIN

What games are most similar to UDONGAIN?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside UDONGAIN are MIHASHIRA, Ayako's Mission, IRREVERENCE.
Who developed UDONGAIN?
UDONGAIN was developed by leimonya.

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 UDONGAIN.

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