VIVARIUMS

VIVARIUMS

Amr Hassan · December 1, 2025 · Puzzle, Horror, Psychological Horror, First-Person, Atmospheric

VIVARIUMS is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Positive100% · 10
This game is free to play. Get it on Steam →

Screenshots

VIVARIUMS price

VIVARIUMS is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About VIVARIUMS

Experience the first-ever first-person Sudoku horror as you descend the reverberating infrastructure of the Typhon Obelisk layer by layer. Solve Sudoku, run, and hide as you unravel what kind of horrors lie within. Will you be able to successfully rejuvenate the obelisk back to life and save the world from drowning?

 SUDOKU... BUT HORROR 

Solve randomly generated Sudoku puzzles of varying difficulties with their accompanying atmospheric levels and environments. No layer plays out the same.

 YOU ARE NOT THE ONLY ONE SOLVING SUDOKU 

Something's moving between the endless pipes of the Typhon Obelisk... Better lay low and avoid making mistakes; you do not want to draw its attention.

 RISK VS. REWARD 

Utilize scattered devices and machinery around you to better your chances of survival. Are you willing to sacrifice a save station in order to solve a random cell in your challenging Sudoku puzzle? The choice is yours...

 DIFFERENT WAYS TO PLAY 

Challenge yourself to an enduring one-life run in the Endless game mode, or perhaps a Daily Run would be more your style? If you ever feel crafty, design your own VIVARIUMS experience in the Custom game mode.

VIVARIUMS — game info

Platforms
Windows
Player modes
Single-player
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

✦ AI summary

Players praise the game's original concept combining Sudoku with horror elements, noting the atmospheric tension, engaging gameplay that rewards strategic thinking, and fun cooperative potential. However, some find the premise divisive—particularly those who dislike Sudoku—and the AI enemy can feel inconsistent or overly punishing once detected, though most still appreciate the creative execution and immersive dread the game creates.

Recommended Dec 4, 2025
Very interesting and I love the spirtual vibes it gives off, my son really enjoys the sudokus while I fend off the bad guys. Which makes it even more fun and WAY more interesting. Thank you, for creating this masterpeice. Highly Recommended
7 found this helpful
Recommended Dec 31, 2025
An interesting premise executed pretty well! If you know how to play Sudoku, the classic number puzzle game, but felt like it needed more dread, then this is the game for you! We had a great time with friends navigating the terrors and obstacles to filling out the numbers whilst being pursued by the enemy roaming the level. Fun with friends that can help fill out puzzle while the player keeps track of saving and putting in the correct numbers. PROS: *Awesome idea that I would've never thought of *Multiple levels with new gameplay challenges integrated in slowly *Atmospheric sound and visuals that keep you tense CONS: *Monster can be a bit unforgiving once you're spotted Oh! And here's video of our Gameplay & Impressions! - https://www.youtube.com/watch?v=U48GMCc0jQQ
5 found this helpful
Recommended Dec 4, 2025
Honestly i almost shat my pants. the game's graphics and atmosphere are actually super captivating, and the way you are forced to strategize and plan your "path" is super engaging. you have the freedom to win in a number of ways, and none of them save you the terrifying, soul-ripping DEMENTOR'S KISS you feel when that ♥♥♥♥-ass hunk of metal chases you. 10/10, would recommend u play with brown pants on. EDIT: Just played level 4. actual schizophrenia in first person
5 found this helpful
Recommended Dec 30, 2025
Horror Sudoku, AI is a bit goofy at times but I enjoyed it.
4 found this helpful
Recommended Dec 2, 2025
Really cool and original idea with a good environment. I love sudoku and horror games so this game is great match for someone like me. So if you're like me or you found the concept interesting give it a shot.
4 found this helpful
Recommended Aug 3, 2026
VIVARIUMS is a small simulation-style game focused on creating, managing, and observing miniature environments. Instead of relying on action or traditional objectives, the game is built around creativity, patience, and the enjoyment of watching a living space develop over time. The biggest strength of VIVARIUMS is its relaxing concept. Building and maintaining a small ecosystem can be a satisfying experience, especially for players who enjoy simulation games where the reward comes from slowly seeing their creations grow and change. The game encourages creativity by allowing players to experiment with different setups and designs. Creating a space that feels balanced and visually pleasing gives the player a sense of ownership, making the experience more personal. The atmosphere is another strong point. The focus on nature and observation creates a calm feeling that makes it different from more intense games. It is the type of experience that works well when you want something slower and more peaceful. However, the biggest weakness is that the gameplay may feel limited depending on what you expect. Simulation games need enough options, interactions, and progression systems to sta…

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