Cosmic Osmo and the Worlds Beyond the Mackerel

Cosmic Osmo and the Worlds Beyond the Mackerel

Cyan Worlds, Inc. · 2026 · Casual, Adventure, Point & Click, 1980s, Cartoony

PC
Mostly Positive78% · 87
Best price 64 Great deal
$0.29-95%
lowest tracked $0.22
Gameseal Buy at Gameseal

Compare prices in Official Stores

Steam
Steam
Standard Edition · Steam
$5.99
Buy

Compare prices in Keyshops

Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.

Gameseal
Gameseal
Standard Edition · Steam
$0.29
Buy
Eneba
Eneba
Standard Edition · Steam
$0.51
Buy

Screenshots

About Cosmic Osmo and the Worlds Beyond the Mackerel

You're an Osmo, a strange creature indeed. You explore the galaxy in your spaceship, and the planets you encounter are almost as bizarre as the Osmos themselves. There are seven worlds presented for your consideration, each more goofy and peculiar than the last. Cosmic Osmo is a game about exploration and discovery, not winning or challenges.

Children and adults will both find something to enjoy in this early gem from the creators of Myst.

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Dec 10, 2025
Genuinely one of the most imaginative spaces to mess around in. Like an old website for kids way back when. You can't make it fill the whole screen though, which kinda sucks, and if you click outside of the playable interface, the whole thing breaks... EDIT: I managed to do some hacky thing, whereby I used ProtonTricks to make the game windowed, then used OBS to capture the window and blow it up using linear scaling, which did wonders for immersion. This was a wonderful way to experience this little ditty.
3 found this helpful
Recommended Sep 14, 2025
This is what happens when game programmers explore a Power Point like System in the very early 90s. It lead to MYST a few years later and it´s still adorable today. Especially given the fact how much you can do with so little material to work with.
Recommended Jun 28, 2025
Wow! Played for the first time in 2025, loved every second of it. I don't know what it was like to code games in 1989, but these guys are all star musicians and visionary dreamers. So many funny scenes and great implementation. Super fun, wish I got the chance to play as a child, but will definitely be showing to kids if opportunity arises!
Not recommended May 31, 2025
It's a goofy bit of fin but the scenes sometimes get stuck and cause you to have to quit the game and restart. More satisfying than the Manhole, but I only suggest if if you feel the need to see Cyan's older works. Not worth it by today's standards.
Recommended Mar 23, 2025
Drugs.
Recommended Jan 23, 2025
Cosmic Osmo and the Worlds Beyond the Mackerel is a classic point-and-click adventure game developed by Cyan Worlds, the creators of Myst. Originally released in 1989, it offers a whimsical & surreal journey through bizarre worlds, focusing on exploration & discovery rather than complex puzzles or challenging gameplay. It's a charming piece of gaming history, but its age is definitely showing. You play as the titular Cosmic Osmo, a strange, friendly alien creature who travels through space in his spaceship. The game consists of seven distinct worlds, each with its own unique visual style & quirky inhabitants. You can explore these worlds freely, interacting with objects & characters to uncover their secrets. One of Cosmic Osmo's greatest strengths is its unique & imaginative world design. The visuals are charming & whimsical, with a distinct hand-drawn style. The characters are all memorable & have their own personalities. The game's atmosphere is lighthearted & playful, making it a relaxing & enjoyable experience. However, Cosmic Osmo is very much a product of its time. The gameplay is extremely simple, with little in the way of challenge or direction. There are no real puzzles…

Community reviews

0 reviews

Sign in to write a review.

No reviews yet. Be the first to review this game.

More like Cosmic Osmo and the Worlds Beyond the Mackerel