IMHO.

Games like Lightspeed

If Lightspeed is your kind of game, the closest matches are LUNAR, No Blink Allowed and A Certain Incremental Exoplanet — 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 Lightspeed: Reach 299,792,458 m/s to save humanity. In this minimalist incremental simulation, dodge hazards, harvest cosmic matter, and aggressively upgrade your starship's chassis. Turn every hard stop into an explosive launch as you break the ultimate speed limit and push toward Proxima Centauri.

IndieCasualWindows · macOS · Linuxby Tomo Games
Lightspeed — Steam game cover

Players who liked Lightspeed also play

Steam players who put hours into Lightspeed 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. LUNAR

    WHY THIS

    Top pick for Lightspeed fans by collaborative filtering across millions of Steam libraries. Shares Casual with Lightspeed.

    A tiny astronaut explores the Moon in a little window on your desktop. Collect resources, send out drones, upgrade your gear, and customize your operator. A calm idle companion to keep the workday fun.

    2026CasualSteam ↗
  2. No Blink Allowed

    WHY THIS

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

    Train your timing skills to stop the clock close to zero, collect shards, and spend them on a massive skill tree in this short arcade-ish incremental game. Struggle with glitching displays, hidden timers, chaotic multi-stops, and other hazards as you improve your accuracy.

    2026CasualSteam ↗
  3. A Certain Incremental Exoplanet

    WHY THIS

    Third-strongest match for Lightspeed fans by collaborative filtering across millions of Steam libraries. Shares Indie and Casual with Lightspeed.

    Build. Blast. Prestige. Repeat. An incremental game where you build the most productive exoplanet while protecting your enterprise from space pirates. Automate production, shoot rockets, employ an alien and keep on producing.

    StrategyIndieSimulationSteam ↗
  4. Click & Mine

    WHY THIS

    Ranked #4 for Lightspeed fans by collaborative filtering across millions of Steam libraries. Shares Indie and Casual with Lightspeed.

    Click & Mine is a relaxing incremental mining game. Mine various resources and use them to buy upgrades, allowing you to descend deeper and deeper while unlocking new biomes, ores and skills.

    2026IndieSimulationCasualSteam ↗
  5. Around The Core

    WHY THIS

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

    A space-themed incremental shooter where destruction fuels growth. Annihilate asteroids, harvest wealth, and climb a massive upgrade tree.

    2026IndieCasualSteam ↗
  6. Singularity Simulator: Click Is All You Need

    WHY THIS

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

    A clicker/incremental game themed around the technological singularity. Use AI to streamline AI development, build data centers and power plants, and venture into space in pursuit of even more power.

    2026StrategyIndieSimulationSteam ↗
  7. Growing My Manhole

    WHY THIS

    Ranked #7 for Lightspeed fans by collaborative filtering across millions of Steam libraries. Shares Indie and Casual with Lightspeed.

    Consume the universe, grow from Manhole to Black Hole in this insatiable incremental game.

    2026IndieCasualSteam ↗
  8. Catnip Craze

    WHY THIS

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

    A bite-sized incremental idle game about cats, catnip, and numbers going up. Harvest catnip, hire cats, unlock production tiers, and prestige to witness the inevitable conclusion of the craze.

    StrategyIndieSimulationSteam ↗

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.

    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 Lightspeed.

    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. The Murder of Sonic the Hedgehog

    WHY THIS

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

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

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  4. 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 Lightspeed.

    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 ↗
  5. NGU IDLE

    WHY THIS

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

    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 ↗
  6. Awaria

    WHY THIS

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

    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 Lightspeed.

    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 Lightspeed.

    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 Lightspeed

What games are most similar to Lightspeed?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Lightspeed are LUNAR, No Blink Allowed, A Certain Incremental Exoplanet.
Who developed Lightspeed?
Lightspeed was developed by Tomo 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 Lightspeed.

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