IMHO.

Games like Alien Siege: Earth

If Alien Siege: Earth is your kind of game, the closest matches are Arcadia, Speglar and Gunslinger Nova — 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.

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About Alien Siege: Earth: Top-down arcade space shooter with retro pixel-art style. Fight waves of alien invaders across world landmarks, buy upgrades between battles, collect power ups, participate in events & missions, defeat epic bosses, and more.

2026ActionIndieCasualWindowsby Don'tSayGame
Alien Siege: Earth — Steam game cover

Players who liked Alien Siege: Earth also play

Steam players who put hours into Alien Siege: Earth 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. Arcadia

    WHY THIS

    Top pick for Alien Siege: Earth fans by collaborative filtering across millions of Steam libraries. Shares Action with Alien Siege: Earth.

    In this highly addictive top-down arcade shoot-em-up from 1982, originally for the ZX Spectrum, defend yourself from wave upon wave of deadly alien combatants using your Ion Thrust Drive and dual Plasma Disruptors.

    2022Action2.99 USDSteam ↗
  2. Speglar

    WHY THIS

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

    Frantic 4-player laser ricocheting top-down shooter. Keep it casual and enjoy the chaos, or master the surprisingly deep mechanics to obliterate your enemies. Duke it out locally in free-for-all or 2v2.

    2024ActionIndieCasual3.99 USDSteam ↗
  3. Gunslinger Nova

    WHY THIS

    Third-strongest match for Alien Siege: Earth fans by collaborative filtering across millions of Steam libraries. Shares Action with Alien Siege: Earth.

    A top-down, 2d space-shooter that pits the user against swarms of alien ships from other dimensions. Destroy all enemies and portals as fast as possible. Battle increasingly tougher enemies through 40 Campaign levels and Endless Mode!

    2023Action1.99 USDSteam ↗
  4. PUFIWEHO

    WHY THIS

    Ranked #4 for Alien Siege: Earth fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Siege: Earth.

    Protecting Us From Incredibly Worrisome Extremely Hostile Oddities...is what you will be doing with your football! Defend the Earth from the invading disciples of the Deranged Octopus, and learn the ultimate secret of the Universe.

    2020ActionIndieCasual0.99 USDSteam ↗
  5. Blast'N Bounty

    WHY THIS

    Ranked #5 for Alien Siege: Earth fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Siege: Earth.

    Blast’N Bounty is a vertical scrolling shoot’em up featuring 8 stages players can tackle in the order of their choosing. Cruise through a crazy solar system in a mix of pixel art and low poly 3D with action that’s easy to learn but tough to master!

    2026ActionIndie4.99 USDSteam ↗
  6. Asteranova

    WHY THIS

    Ranked #6 for Alien Siege: Earth fans by collaborative filtering across millions of Steam libraries. Shares Action and Casual with Alien Siege: Earth.

    Fast-paced vertical scrolling space shooter featuring intense boss battles, challenging enemy waves, and score-driven arcade gameplay.

    2026ActionCasualEarly AccessSteam ↗
  7. GUNPIG: Firepower For Hire

    WHY THIS

    Ranked #7 for Alien Siege: Earth fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Siege: Earth.

    Sci-fi top-down twin-stick shooter with 9 weapons, 3 alts and secret hidden collectibles!

    2020ActionIndie0.99 USDSteam ↗
  8. Stop the Saturnians!

    WHY THIS

    Ranked #8 for Alien Siege: Earth fans by collaborative filtering across millions of Steam libraries. Shares Action with Alien Siege: Earth.

    Stop the Saturnians is a shooter inspired by classic arcade games. Dodge enemy fire, destroy procedurally generated alien waves and fight massive bosses. Collect resources in the midst of combat to upgrade your ship or improve Earth's defenses. Protect yourself and the planet both!

    2022Action4.99 USDSteam ↗

Free alternatives

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

  1. Life is Strange - Episode 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Alien Siege: Earth.

    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 ↗
  2. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Alien Siege: Earth.

    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 ↗
  3. 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 Alien Siege: Earth.

    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 ↗
  4. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Alien Siege: Earth.

    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 ↗
  5. Sheepy: A Short Adventure

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Casual with Alien Siege: Earth.

    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 ↗
  6. Awaria

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Alien Siege: Earth.

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

    2024ActionIndieFree To PlayFreeDeck PlayableSteam ↗
  7. Travellin Cats in Paris

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Casual with Alien Siege: Earth.

    Find 100 cats hidden in Paris, France in this cute hand-drawn hidden object game by Travellin Cats - the original viral hidden cat game creator!

    2023IndieFree To PlayCasualFreeDeck VerifiedSteam ↗
  8. Grimm's Hollow

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Alien Siege: Earth.

    A spooky, freeware RPG where you search the afterlife for your brother. Reap ghosts with your scythe, explore haunted caves, and eat ghostly treats on your journey through death.

    2019IndieAdventureRPGFreeDeck PlayableSteam ↗

Frequently asked about Alien Siege: Earth

What games are most similar to Alien Siege: Earth?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Alien Siege: Earth are Arcadia, Speglar, Gunslinger Nova.
Who developed Alien Siege: Earth?
Alien Siege: Earth was developed by Don'tSayGame.

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 Alien Siege: Earth.

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