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.
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.
Installation:
1- Extract and run.
Developer: ProfessorX-10
Censored: No
Version: 1.21
Language: English
Genre: 3DCG, Male protagonist, Sci-fi, Adventure, Sandbox, Turn based combat, Graphic violence, Multiple Non-Harem Endings, Animated, Voiced, Monster girl, Romance, Handjob, Footjob, Oral Sex, Vaginal sex, Anal Sex, Group sex, Sex Toys, Virgin, Milf, Lesbian, Stripping, Exhibitionism, Mobile game
v1.21
— Final Upgraded version
— Revised Main Menu.
— New Intro scene skip function for repeat players.
— MC back story scenes added
— Callisto character added.
— Optional ending modified
— Integral Walk through, text and UI modifications in Preferences Menu
— typo corrections and bug fixes.
Download for Windows/ Linux
Download for Windows/ Linux - Compressed
Download for Mac
Download for Mac - Compressed
Download for Android
- swipe down to hide the ui
- swipe left to roll back
- swipe right to start skipping of text
- swipe 2x left&right to open the game menu
- swipe up&down to toggle a small window with memory usage information
- longpress the save file thumbnail in the save/load screen to delete this slot






Anonymous
Game looks interesting. But after reading through the comments on other sites I’ve decided not to try it. He was bombarded with complaints over the ending.
First off they said it plays like a harem till the end but there is no harem ending. That seems silly to me. Why make a harem game just to outright refuse a harem ending? He should have known that would piss people off.
Second you can’t choose which girl you end up with. The endings are based off various things that I won’t go into because of spoilers. But apparently they don’t have anything to do with the girls. So if you want a specific girl… too bad, you get the one he gives you.
Direct quotes from the developer while people were bitching about not being able to find the ending they wanted.
“The romantic options at the end of the game are dependent upon an array of previous decisions”
“The girls affinity is not a factor in the available epilogues”
It is the right of the developer to set the story how ever they want but if you’re gonna have multiple endings, at least give us one that we actually want. Why would you exclude your most requested ending? Why would you go through so much effort to make it difficult for the player to end up with the girl they want?
Endings are very important to me. I’m not gonna get all invested into the story just to have the ending piss me off and make me feel like I’ve wasted my time.
This is the reason why you only have a handful of subscribers left and why nobody wants to play your second game. If the player is satisfied with the ending, they’ll keep coming back for future games. If you intentionally piss them off, they’ll boycott you.
Impregnator
Thanks for the info man. The best ending for me is Harem with pregnancies. If doesn’t deliver one of both or both, isn’t for me. I’ll search for other.
JJD
Great story and the renders and animations are top notch.