Callisto-X
About Callisto-X
Callisto-X is an expanded deluxe Ren'Py adventure from ProfessorX-10, based on Xavster_Gaming’s Callisto. You play a former military officer making a living through trading and scavenging across space. Your ship, the Callisto, and an assorted crew meet new events, relationships, and choices, with animated 3DCG visuals. The game offers multiple endings and adult themes including monster girls, while mini-game challenges can be skipped using a walkthrough.
The v1.21 release, dated August 28, 2025, marks development as finished. It is available for Windows, Linux, Mac, and Android, in English, and uncensored. This update revises the main menu, adds a quick-start intro skip for returning players, includes protagonist backstory scenes, and introduces Callisto as an A.I. character. It also modifies the optional ending, improves the integrated walkthrough, adjusts text and preferences interface, and fixes typos and bugs.
Developer's description
Callisto-X is an expanded, deluxe version of Xavster_Gaming’s Callisto . You play the role of a former military officer, now trying to make a living by trading and scavenging in the vastness of space. You, your ship the Callisto and your rag-tag crew will experience new adventures and relationships along its travels. Spoiler Callisto-X is Callisto , expanded, more interactive, with new story events, animations, mini-game challenges, and an optional ending. All mini-games are by passable with a walk through option. If you’ve played the original Callisto you’ll like the quick start option to skip the introduction. The basic story is the same, but a lot has been added for you to discover. If you’re playing for the first time, be sure to visit the “PREFERENCES” on the Main Menu to select the options for your type of game play before starting. NOTE: This version, ver. 1.21, adds a character, Callisto’s A.I. as I had originally intended.
Callisto-X screenshots
Download Callisto-X v1.21
Win/Linux
Android
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