IMHO.

Single-player games like planetarian ~the reverie of a little planet~

Below are 14 single-player Steam games similar to planetarian ~the reverie of a little planet~, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like planetarian ~the reverie of a little planet~ page.

Ranked picks

  1. 1
    Stella of The End — Steam game cover

    Stella of The End

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    Jude Gray, a wandering Courier, receives a request to deliver some very special cargo. This cargo turns out to be Philia, an android girl who is unaffected by the enigmatic Singularity Machines.

    2023AdventureSimulationCasual19.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    planetarian HD — Steam game cover

    planetarian HD

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    planetarian HD is an engaging and emotional visual novel from legendary game studio, Key. A sub-brand of VISUAL ARTS, Key are also famed for creating Kanon, AIR, CLANNAD, Little Busters!, Rewrite, Angel Beats!, and Summer Pockets.

    2017AdventureSimulationCasual9.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    planetarian: Snow Globe — Steam game cover

    planetarian: Snow Globe

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    "planetarian: Snow Globe," the prequel to Key's sci-fi kinetic novel "planetarian: The Reverie of a Little Planet," is now available with binaural audio support! Enjoy the story of a companion robot and her coworkers at a planetarium, and the simple joys they find in their everyday lives.

    2025AdventureSimulationCasual3.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Harmonia Full HD Edition — Steam game cover

    Harmonia Full HD Edition

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    Set in a war-torn world in the distant future, the sci-fi kinetic novel "Harmonia" follows a mechanical boy and a human girl as they find their way to each other's hearts. Key's 15th anniversary title is back with full voice and FHD resolution, including the main character!

    2024AdventureSimulationCasual14.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    KANADE — Steam game cover

    KANADE

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    A visual novel about becoming lovers with Kanade—a half-human, half-alien girl. Enjoy a tender relationship with Kanade and witness how love blossoms into a song that saves the world.

    2025AdventureCasual9.74 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Last Days — Steam game cover

    Last Days

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    The gods have blessed New Canaan for four hundred years, and everyone - including Sister Ginsetsu - thought it would go on forever, until the day Ginsetsu met the gods of New Canaan. Since then, the story between the maiden who calls herself a god, and the maiden who will become a god has begun.

    2021IndieRPGCasual1.59 USDSingle-playerSimilar games →
  7. 7
    Maid For My Master — Steam game cover

    Maid For My Master

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    A cute romance story between a young man and a maid who just so happens to be a robot. Is love enough to overcome the differences between man and machine?

    2025IndieCasual10.99 USDSingle-playerSimilar games →
  8. 8
    Fallstreak: Requiem for my Homeland — Steam game cover

    Fallstreak: Requiem for my Homeland

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    A death march to the end of the world. Can humanity's lost future be reclaimed?

    2020IndieAdventureCasual4.99 USDSingle-playerSimilar games →
  9. 9
    CLANNAD — Steam game cover

    CLANNAD

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    From the world renowned visual novel studio Key, the highly rated story of CLANNAD is now available on Steam! Improved visuals, achievement integration, and Dangopedia make this the best version of CLANNAD to date.

    2015AdventureCasual44.99 USDSingle-playerSimilar games →
  10. 10
    Summer Pockets — Steam game cover

    Summer Pockets

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    From the creators of Angel Beats! and CLANNAD, Key, comes their latest emotional, award-winning journey. Follow protagonist Takahara Hairi as he travels to the secluded island Torishirojima, where he rediscovers what it means to enjoy summer vacation.

    2020AdventureCasual44.99 USDDeck PlayableSingle-playerSimilar games →
  11. 11
    Little Busters! English Edition — Steam game cover

    Little Busters! English Edition

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    Capturing the hearts of countless fans since 2007, Little Busters! is an emotional visual novel from Key, the minds behind Angel Beats! and CLANNAD. This special English release supports touch controls and dynamic switching between English and Japanese text, and is in HD for the first time on PC.

    2017AdventureSimulationCasual34.99 USDDeck VerifiedSingle-playerSimilar games →
  12. 12
    LOOPERS — Steam game cover

    LOOPERS

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    Tyler is a high schooler on a mission. He's going to use every minute of summer vacation to go on as many GPS-assisted scavenger hunts as possible. After running into some old friends during one of these hunts, strange things start happening: The day resets and today plays out exactly like yesterday

    2023AdventureSimulationCasual19.99 USDDeck VerifiedSingle-playerSimilar games →
  13. 13
    Harmonia — Steam game cover

    Harmonia

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    From renowned visual novel studio Key, which brought you the highly rated visual novel “planetarian~the reverie of a little planet~”, this is “Harmonia”, the latest kinetic novel in the series.

    2016AdventureSimulationCasual9.99 USDDeck PlayableSingle-playerSimilar games →
  14. 14
    Tomoyo After ~It's a Wonderful Life~ English Edition — Steam game cover

    Tomoyo After ~It's a Wonderful Life~ English Edition

    Single-player alternative to planetarian ~the reverie of a little planet~ — playable solo, no multiplayer required. Shares Casual with planetarian ~the reverie of a little planet~.

    From renowned visual novel studio Key, this is the sequel to the highly acclaimed visual novel CLANNAD. Featuring a truly memorable continuation to Tomoya and Tomoyo's journey, Tomoyo After promises to draw you even further into CLANNAD's world.

    2016StrategyAdventureRPG19.99 USDDeck PlayableSingle-playerSimilar games →