Eternum is an adult adventure game by Caribdis, made in Ren'Py and presented with 3D graphics and moving visuals. You play a student moving with a best friend to Kredon, a city known for top schools and universities. Everyone there talks about ETERUM, a hyper-reality MMORPG released years earlier. A neural implant recreating all five senses makes its thousands of servers feel almost indistinguishable from reality, spanning fantasy worlds and foggy sci-fi cities. Beneath that polished surface are black markets, illegal trafficking, data theft, and unchecked lawlessness, while governments appear to ignore the game. Your role in this story is left to you.
The current build is v0.9.5 Public, released on January 21, 2026, and development continues. It runs on Windows, Linux, Mac, and Android in English and is uncensored. The latest changelog notes bug fixes and a few added render and audio tracks. Earlier updates also brought large increases in images, animations, code, music, sound effects, and interface changes. The game blends harem and horror themes with its adventure structure.
Developer's description
You’re moving with your best friend to the city of Kredon, home to some of the best schools and universities in the country, to continue your studies. However, in Kredon, there’s only one thing everyone talks about: ETERNUM—the virtual, hyper-reality MMORPG game released a few years ago that revolutionized the world of technology.
Spoiler
With a neural implant that recreates the five senses, it becomes impossible to distinguish between the game and the real world.
Thousands of servers form the network of Eternum: from colorful, magic-filled fantasy worlds to foggy sci-fi cities, no world is beyond reach.
Nevertheless, looking beyond the surface, there's a darker side to this pretty facade: black markets, torture, rape, illegal content trafficking, unlawful assemblies, data theft… Eternum follows the rules of no man.
For some reason, governments turn a blind eye to this; there’s no regulation and no control. Some say it’s because the game is highly addictive, some say it’s because the market moves millions of dollars daily, some say those in power have been bribed, and others say… there’s something else going on.
And you? What’s your role in this story?
Well... That’s up to you now.
v0.9.2-5
Bugfixes
A few render &audio tracks added
v0.9.0
2050+ new images
90+ new animations
20900+ new lines of code
42+ new music tracks
100+ new sound effects
Several render and code fixes
v0.8.6
Public
Necessary changes to sound were made
v0.8.5
Public
Bugfixes
v0.8.4
Grammar/text fixes
Minor variable changes
v0.8.0
1650+ new images
80+ new animations
16750+ new lines of code
38+ new music tracks
150+ new sound effects
Updated UI
Several render and code fixes
v0.7.5
Public
Bugfixes
v0.7.0 Hotfix
Fixed a game breaking bug
v0.7
1250+ new images
60+ new animations
13450+ new lines of code
36+ new music tracks
95+ new sound effects
Several render and code fixes
v0.6.2
Public
Bugfixes
v0.6
1375+ new images
50+ new animations
13900+ new lines of code
30+ new music tracks
105+ new sound effects
Several render and code fixes
v0.5
Public
1236+ new images
50+ new animations
12500+ new lines of code
29+ new music tracks
92+ new sound effects
New Eternum login animation
Several render and code fixes
v0.5
1201+ new images
50+ new animations
11500+ new lines of code
29+ new music tracks
90+ new sound effects
New Eternum login animation
Several render and code fixes
v0.4
Beta
1122+ new images
37+ new animations
9600+ new lines of code
27+ new music tracks
106+ new sound effects
New outfit gallery in the BIOs
Several render and code fixes
v0.3
1192+ new images
25+ new animations
10400+ new lines of code
25+ new music tracks
68+ new sound effects
Several render and code fixes
v0.2
1155+ new images
20+ new animations
9300+ new lines of code
22+ new music tracks
115+ new sound effects
You can now name your saves (optional)
The (optional) textbox now hides if there's no text so transitions look better
The gallery was redone, now there's 1 general gallery with all the scenes and you can filter them by girl or type of scene
The relationship screens were redone, now they include a small BIOS with personal info of every girl and 5 possible relationship levels
A money screen was added to visually show your current money every time you make a purchase or receive money (replay Chop-Chop's shop scene to see it)
The login scene where you enter Eternum for the first time was enhanced
Several other render and code fixes
v0.1
New story
1030+ new images
30+ new animations
9000+ new lines of code
28+ new music tracks
112+ new sound effects
Player reviews
Player rating5.0 / 5 · 20 ratings
Written reviews20 · avg 4.9★
Positive (4–5★)95%
Latest review2026-04-11
What players say
Most players rate it highly, praising writing and visuals, while one reviewer finds routes confusing.
5★18
4★1
3★1
2★0
1★0
Players like
Strong story and writing keep players engaged beyond adult scenes.
Characters feel distinct, well developed, and easy to care about.
Renders and animations are praised as high quality and detailed.
Music and humor add atmosphere and make the game fun.
Common complaints
Some players mention confusing routes, linear pacing, or long update waits.
Best for players who enjoy well-written adult visual novels with strong characters and humor.
Summarised from 20 written player reviews.
salkykey2026-04-11★★★★★
Eternum is one of, if not "the" best AVN I have played and I played more than at least 100. Everything just fits perfectly. The story, the characters, musics, renders, animations etc. There is barely any competition for this one…
AntanBea2026-04-07★★★★★
i really want to love this game,but there is just too much going on , the premise is really good, the charters are very well made as well as the animation, but the story is so full of seriosness and…
styani2026-04-06★★★★★
I fully agree that this should be the highest rated game on this site at the time of this review. The story is intriguing enough and the writing, pacing, and characters are all flawless. The H-scenes are simply on another…