Good, but buggy
Response from developer
I am very sorry about this. This bug is now fixed as of version 1.0.15! Thanks for making me aware of it and for the support.

Embark on a relaxing journey of upgrades and production as an alien who discovers a cosmic ingredient. Grow your humble beginnings into a universal phenomenon with engaging gameplay and meaningful enhancements. Enjoy progress even while away with this offline-friendly idle game.
1.0.15
July 15, 2026
Minor update to fix a few bugs.
$0.99
Time away cap upgrade
+1 hour added to time away cap
I am very sorry about this. This bug is now fixed as of version 1.0.15! Thanks for making me aware of it and for the support.
Yes, Jeff's Cosmic Brew contains advertisements. The app is free to download and play, with options for in-app purchases.
Yes, Jeff's Cosmic Brew is designed to be offline-friendly, allowing you to progress even without an internet connection.
Jeff's Cosmic Brew features casual, hybrid idle gameplay. It focuses on upgrades, production, and watching your progress grow over time.
The latest version is 1.0.15, and the app was last updated on July 15, 2026. Updates are frequent, ensuring ongoing improvements and new content.
Jeff's Cosmic Brew is available on iPhone and iPad devices.
Jeff's Cosmic Brew has an age rating of 4+, making it suitable for a wide range of players.
Yes, Jeff's Cosmic Brew includes three minigames that are designed to boost your overall progress within the main game.
While specific details on in-app purchases are not provided, they typically offer ways to accelerate progress or unlock cosmetic items in idle games.