Oppai Odyssey is a Ren'Py adventure made by Cryoxxx, set aboard the USF starship Agni. You play the ship captain, exploring unknown planets for colonization while meeting strange races and uncovering schemes within the USF. The game uses animated 3D CG scenes and a dating sim structure, letting the captain grow close to the crew. Its themes include fantasy, adventure, and corruption, with adult content presented plainly.
The current build is v0.5.1q, released May 19, 2026, and development is ongoing. It runs on Windows, Linux, Mac, and Android, in English, with no censorship. The latest changelog adds more than 610 images, over 18 animations, and fifteen new events. It also expands story and character development, adds adult scenes involving Nyx, Zara, and Noel, plus new adult content for Pip, Sybil, An, and Dr. C.
Developer's description
You are the captain of the USF starship Agni. Tasked with the mission of exploring uncharted planets in hopes of finding colonization targets, you will have the opportunity to experience the unique races and environments of the universe. Build friendship and share intimacy with your ragtag crew, as you traverse the mysteries of the universe and the nefarious plots of the USF. Oppai Odyssey features completely animated scenes and sexy situations.
v0.5.1
-610+ new images
-18+ new animations
-3 new lewd scenes Nyx, Zara, and Noel
-New lewd scenarios for Pip, Sybil, An, and Dr. C
-15 new events
-Important story and character development
v0.5.0a
635+ new images
36+ new animations
Major Main Story Episode
2 New lewd scenes featuring Noel and Sybil
Character Events for Pip, Nyx, Lym, and Yaz
3 new Crewmates
New Spanish and Chinese Translations
New Main Menu
Early chapter Repolishing (VN mode only for now)
Extended Zara event on Idris
5 new events featuring Ms. Saeko
5 new music tracks
10 new sound effects
v0.4.6
425+ new images
10+ new animations
1 new lewd scene for Nyx and Pip
1 new Lewd scene for Lym
1 new Lewd scene for Zara'Thul
New main story mission
v0.4.5
430+ New images
16+ New animations
2 New Nyx lewd scenes
1 Lewd scene for An
New sexy outfits and hair styles
New character events for Sybil, Noel, and Lym
v0.4.4B
327+ new images
11+ new animations
New Lym relationship developments
Intense main plot events
New characters and factions introduced
2 new lewd scenes featuring Lym, Nyx, and Sybil
New character events for Dr. Sura, Vann, An and Zara
v0.4.3C
Fixed and issue with sandbox mode skipping major plot points when clicking a Pip event.
v0.4.3
389+ New Images
8+ New Lewd Animations
New Character and Relationship Milestones
New Hot Outfits and Hairstyles
2 New Lewd Scenes featuring Noel and Sybil
2200+ New Lines of Dialogue
v0.4.2A
·390 new images
·11 new Lewd animations
·Next step of the crew's journey
·Important character choices for the purple prisoner
·2 new lewd scenes featuring Pip and An
·2500+ new lines of code and dialogue
·New Jukebox menu
v0.4.1a
3 new renders
New logo
A lot of typos and missing images fixed
gallery fixes
40 new codex entries
general codex/captain log updates
v0.4.1
·555+ new images
·6+ new Lewd animations
·Conclusion of the Cluster storyline
·New characters and crewmates
·2 new lewd scenes featuring Zara, Kali, and Lym
·3600+ new lines of code and dialogue
·New reworked Gallery
v0.4.0 Public
What's different from beta?
Bugfixes/typos:
Gallery now unlocks correctly through VN mode
Fixed missing images
Restructured the event progression in VN mode for continuity
2 new songs
3 new sound effects
v0.4.0
·540+ New Images ·17+ New Lewd animations ·All new crew expedition
·New story events ·New Noel Character events ·New Characters
·3200+ New lines of code and dialogue
v0.3.9x vn
All new VN mode option stretching across the entire game
Various bug fixes
Continuity fixes for the updated Xerxes
I know this isn't the update you all were waiting for, but OO is always improving and this is a great inclusion. If you have any questions, feel free to ask!
v0.3.9x
339+ new images
24+ new Lewd animations
6 new events
Branching Nyx Lewd scene
Important Nyx Relationship choice
3600+ new lines of code and dialogue
New UI buttons
New save game location for Android (No more losing progress every patch)
Added ability to name saves
Xerxes Changelog:
Complete rework of the entire first mission
300+ new images
2 new animations
1 new lewd scene featuring the Admirals
2200+ new lines of code and dialogue
1 new music track
10 new sound effects
More Alex content added pre-Xerxes
v0.38 Fixed
New updated links
Typo and bugfixes
Script changes.
v0.3.8 Public
492+ new Images
19+ new Lewd Animations
7 new events
3 new lewd events ft. Sybil, Pip, Noel, and Nyx
4000 new lines of code
2 new music track
All new codex with 300+ entries
v0.3.7:
Completely new prologue!
New backstory for Captain, including training specialties
Reworked and rewritten events up until the current version
430 brand new renders
17 new animations
Lots of new characters
Tons of new clothes
Over 1.5k new prologue dialogue lines
New Ms. Saeko prologue lewd scene written completely by my good friend, TD
New Dr. Clermont prologue lewd scene
60 new music tracks
54 new sound effects
UI changes
Over 7k rewritten old dialogue lines added
Reworked prologue navigation and event sequencing
v0.3.6 Public
305 new renders
18 new animations
18 new events
3 new lewd events (1 for Lym and 1 split event for Nyx)
1500 lines of dialog
UI changes
Lots of breasts and butts.
Captain got upgraded... "equipment" (No more seam)
v0.3.5
405 new renders
9 new animations
15 new events
1 new Noel lewd event
1 new Nyx lewd event
Sybil and The Prisoner get their spot on the ship
2 new rooms
Brand New Affection/Lust system
Brand New "Captain Log" menu
Mon-Sunday day system
Small changes to the prologue dialog
Lots and LOTS of new dialog and code!
v0.3.4
What's new:
1 new girl
364 Renders
4 new animation
2k lines of code
10k words of dialog
Lots and lots of story content!
It's here! Hope you all enjoy the next mission!
v0.3.3c
200 New Renders
14 new animations
4 new lewd scenes
8 new events
Brand new main menu
Bugfixes
Upgraded visual quality for prologue
v0.3.3
200 New Renders
13 new animations
4 new lewd scenes
8 new events
v0.3.2
160 Renders
4 new animations
2 new lewd scenes
11 new events
10 new hidden objects
v0.3.1a
395 new renders
17 animation loops
4 lewd events
4 new girls
15,000 words
6 New music tracks
And a brand new world to explore
v0.3c
Removed the orc group sex on Xerxes.
Player reviews
Player rating3.5 / 5 · 20 ratings
Written reviews20 · avg 3.2★
Positive (4–5★)50%
Latest review2026-03-30
What players say
Reviews are mixed, praising visuals, story, and adult scenes, but criticizing inconsistent writing and weak protagonist.
5★7
4★3
3★2
2★3
1★5
Players like
Strong visuals, animations, character designs, and space scenes
Interesting sci-fi harem premise with plot twists and varied characters
Optional adult scenes with varied kinks and decent animation
Common complaints
Inconsistent story, abrupt character changes, and removed relationships
Weak, inconsistent protagonist with limited player control
Sparse choices that feel forced or inconsequential
Best for players who want a space harem with strong visuals and optional adult content.
Summarised from 20 written player reviews.
Adonis072026-03-30★★★★★
Great scenarios in a sci-fi setting. The presentation is lacking and you will see some clipping and model issues from time to time. But in the later parts you also get quite the imporvevemnt in animation quality. Interrested to see…
TheGoodPastor2026-03-23★★★★★
Solid 8.5 or 9/10, can't quite pin it down. I honestly don't understand a lot of the criticism's about plot/Lym's character in some of the negative reviews here, I can only surmise that people just really liked her and the…
Anonio3332026-03-01★★★★★
The reviews made me doubt whether I wanted to start the game, but needing for space harem was stronger. Do I regret? Spoiler: Legend Green = I like it Yellow = Mixed feelings Red = I don't like it Story…