Ex Vitro
Released Jan 2024
EX VITRO is a dark sci-fi 2D platformer where you delve into the ruins of a military research facility and discover the horrors within. Whether machine, creature, or something else entirely, you’ll face the violent legacy of the last survivors of humanity.
94% positive · 156 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to get it
Free on Steam
Evaluation
Ex Vitro is a free-to-play Metroidvania that launched on January 31, 2024 and received several patches in its first year: version 1.01 on February 13, 2024 (bug fixes and hard mode), patch 1.02 on March 23, 2024 (quality-of-life features), and patch 1.03 on February 17, 2025 (new features and bug fixes). The sole released DLC is a bonus content pack that shipped on February 1, 2024, and no unreleased DLC exists.
The developer's own posts make clear that Ex Vitro is a completed project. A July 25, 2024 update announced the formation of a new studio (Evolver Dynamics) and described work on a separate side project called Mycocosm. A December 6, 2024 post mentioned applying for grants for an "unannounced project." Then on May 10, 2025, the developer confirmed they received a grant to begin development on their next game — explicitly a new title, not further Ex Vitro content. A July 18, 2025 update gave a detailed progress report on this next game's prototype, describing it as a distinct project with new engine work, new AI systems, and new concept art.
The developer's focus has fully shifted to the next game. Patch 1.03 (February 17, 2025) appears to be the last substantial update to Ex Vitro, and no further Ex Vitro content has been announced or implied. The game launched as a complete, self-contained experience and has been fully supported through its post-launch patch cycle.
Evidence
Developer provides a detailed progress update on their next game's prototype — separate from Ex Vitro — describing new engine systems, enemy AI, and concept art. No mention of any further Ex Vitro updates.
Developer announces they received a grant to begin development on their next game, describing it as a new project distinct from Ex Vitro. States plans to open prototype to players in the coming months.
Content
1 of 1 released · no outstanding content
Media
Details
Developer
Publisher
Evolver Dynamics
Achievements
19
Platform
Windows
Controller
full support
Steam Deck
Playable
Players
Single-player
About this game
FEATURES:
- A retro love letter to the Metroid series, with a few quality of life adjustments, such as teleporters, rechargeable ammo, item collection tracking by area, and more
- Discover journal entries hidden throughout the facility, explaining the grim fate of humanity and its war against the galaxy
- Uncover the nature of the main character and their role in the conflict
- Collect and upgrade powerful weapons
- Traverse 8 different biomes, each with their own inhabitants, secrets, and traps
- Fight multiple massive boss enemies
- Unlock 2 endings based on item completion
- Original music tracks by Sam Bionn
STORY:
By the end of the twenty-second century, Earth was a dry, arid husk. Billions of humans were crowded into overpopulated shelters, rife with disease and death. Just as their ancestors did so long ago, humanity looked to the stars for salvation. Using incredible technologies designed out of desperation, billions of people forged journeys into the darkness, establishing vast networks of interstellar colonies. The discovery of countless forms of alien life was met with indifference - an indifference that quickly turned to contempt. A powerful human military, honed by centuries of warfare, overpowered and conquered isolated alien worlds, claiming them as new territory for the massive human diaspora.
Humanity had avoided extinction and resettled itself, but had made a galaxy of enemies in the process. Survivors of countless fallen alien worlds banded together, and launched a suicidal campaign of revenge against the upstart race. All of humanity’s military and technological advances crumbled under the fury of an enraged galaxy, and soon, only a few million people remained, hidden in isolated pockets across the stars.
Once again faced with extinction, humanity turned to the tool that had brought them to the stars: innovation. But now, surviving military leaders were uninterested in saving lives or defending worlds. Their focus was far more singular - the eradication of everything. Terrible, reality-warping weapons were created by bending the very laws of nature. Captured alien species were spliced together and twisted into genetic abominations. Artificial intelligences were designed and built to brutalize their enemies, stripped of any ethical or moral restraint.
But there were a few dissenters. Not everyone believed that humanity’s last acts should be dedicated to nihilism. Some tried to reason with those in charge. Some refused their orders.
And a small number decided to act.
DEVELOPER’S NOTE:
Ex Vitro began its development many years ago as a tribute to one of the greatest games of all time: Super Metroid. I quickly realized any fangame would be squashed with legal trouble, so I shifted the graphics to my own design and tried to ride the line between ‘tribute’ and ‘knock-off’. It remains to be seen how successful I was, but as a solo developer, I learned a lot about game design in the process. It was the first game I started making, and it contains all of the lessons I learned along the way. Due to its origin, I feel that it’s unfair to charge for it. But I’ve included a bonus pack to go with it, if you want to support future development of new games by me!
BONUS PACK INCLUDES:
- Instructions on how to build your very own Terrarium! (with special tips from the Facility Administration on how to care for genetic abominations)
- 3 original music tracks by Sam Bionn
- High res concept art images of the character, final boss, and ending slides
- High quality wallpapers with various resolutions
- Royalty-free sprite sheets of unused graphics that never made it into the game, and behind-the-scenes descriptions of why they weren’t included
- 8 Royalty-free tilesets of every environment from the game
Last evaluated Jun 21, 2026
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