You open your eyes and find yourself in an unknown, mysterious place in a tangled maze. A green, fluorescent liquid and an eerie implant turn your thoughts and your life upside down.

What is the meaning of this?
Where are you?
Why are you here?
How can you manage to escape this place?

After a short time you realize that this strange green Serum is the key to your future. The eternal race against time begins… Find shelter, search for new technology, craft your equipment and try to reach places where this precious substance is waiting to be gathered. But be warned: Serum can alter your body in unexpected ways.

Never forget: Your Life is in your hands alone!

Developer Game Island and publisher Toplitz Productions are pleased to announce that Serum is now available on PC via Steam early access

During its time in early access, developer Game Island will look to expand upon the features and resources available to players, and has also revealed Serum’s early access roadmap, which includes plans to bring an up to 4-player co-op mode later this year.

Initially, quality-of-life improvements, bug fixing and community feedback will continue, followed by the introduction of additional translations and achievements. The roadmap also reveals new combat options with deadly  traps and a planned UI revamp, all of which will further enhance the player experience in the months ahead.

The roadmap also outlines a challenging new level in the form of a canyon biome with new mutated adversaries and more revelations about the mutagen that form the basis of the game’s main story and questline.

Key Features:

• Unravel the mystery of the eerie liquid, earn new abilities and find a way out
• Fight against various creatures with a multitude of weapons: There are melee, ranged, throwing and serum-enhanced weapons available
• Solve puzzles and activate secret mechanisms in doors, crates or hatches.
• Build a safe house and expand your safety zone as you progress
• Explore the fascinating world and discover new mystical biomes and their unique characteristics
• Learn about the history of the mysterious location you are in and find out how to use the tools and devices (e.g. collect, loot, scan etc.)
• Acquire new abilities and craft weapons tools and even special types of Serum
• Survive in a hostile environment under time pressure. Manage your health, stamina, and beware of the mutations

Serum is in development for PC (Steam), scheduled for full launch in 2025.