Jelly Killer
Released Mar 2016
Jelly Killer - Retro Platformer The Adventures Of A Young Bioweapon. In this game you will act like the young bioweapon. You will encounter lots of traps and puzzles. You will have to possess human bodies to pass the game to the end. Good luck!
80% positive · 380 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to buy
Steam $3.99
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Evaluation
Jelly Killer launched on March 24, 2016 as a complete 54-level retro platformer. Following launch, the developer shipped two feature patches — one on April 3, 2016 (adding a Hard difficulty mode and bug fixes) and one on May 29, 2016 (adding camera controls, fixing localization issues, and announcing mobile releases). The last developer communication of any kind was on October 24, 2016, when a Halloween update added a new playable hero along with a holiday discount. That Halloween update represents the final content addition to the game. Since October 24, 2016, the developer has posted no further updates, announcements, or communications. The store description presents the game as a fully scoped, self-contained experience with a defined set of 54 levels and 5 characters. No future content has been announced, no unreleased DLC is listed, and the developer has been silent for nearly a decade. This game launched as a finished product and received a small amount of post-launch polish before going quiet.
Evidence
Halloween update added a new hero and a holiday discount — the last developer communication on record.
Update added camera controls, fixed localization bugs, and announced mobile platform releases.
Media
Details
Developer
Publisher
Immortal Game Studio
Achievements
16
Platform
Windows, macOS, Linux
Controller
full support
Steam Deck
Verified
Players
Single-player
About this game
The Story
In 2784 after decades of zombie invasions the scientists finally discovered the so-called zombie-genome which is able to equip dead corpses different abilities.
Generally it manifested itself as recovery of motion functions and need for food.
But in some cases scientsits found out that the creatures had totally independent behavior and strong desire to control and destroy all species around for their personal purposes.
As soon as the military got informed of such qualities of zombie-genome, they immediately started to develop a new kind of biological weapon.
After many experiments they finally made the first prototype of a biological weapon which had its own mind and shapeless jelly-like body. It had an ability to take control of any living creature.
This weapon gave them an opportunityto resolve any conflict by force.
But one day there was an emergency. One of the labs in Colony No4 went out of power just for a few seconds. It was enough for the young bioweapon to feel free and escape.
In this game you will act like the young bioweapon. You will encounter lots of traps and puzzles. You will have to possess human bodies to pass the game to the end. Good luck!
In this game you’ll find:
- good old platforms
- lots of action and tactics
- simple, exciting and original gameplay
- 54 levels full of deadly traps
- unique main character
- 5 characters for walking through a game
- perfect pixel art style.
In 2784 after decades of zombie invasions the scientists finally discovered the so-called zombie-genome which is able to equip dead corpses different abilities.
Generally it manifested itself as recovery of motion functions and need for food.
But in some cases scientsits found out that the creatures had totally independent behavior and strong desire to control and destroy all species around for their personal purposes.
As soon as the military got informed of such qualities of zombie-genome, they immediately started to develop a new kind of biological weapon.
After many experiments they finally made the first prototype of a biological weapon which had its own mind and shapeless jelly-like body. It had an ability to take control of any living creature.
This weapon gave them an opportunityto resolve any conflict by force.
But one day there was an emergency. One of the labs in Colony No4 went out of power just for a few seconds. It was enough for the young bioweapon to feel free and escape.
In this game you will act like the young bioweapon. You will encounter lots of traps and puzzles. You will have to possess human bodies to pass the game to the end. Good luck!
In this game you’ll find:
- good old platforms
- lots of action and tactics
- simple, exciting and original gameplay
- 54 levels full of deadly traps
- unique main character
- 5 characters for walking through a game
- perfect pixel art style.
Are these done yet?
Last evaluated Jun 27, 2026
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