Project Tachyon

Project Tachyon is a time-traveling action game about Sigma, an agent sent back in time to prevent a nuclear winter. After the Tamageria Republic launches a nuclear attack to stop the rebel artificial intelligence Mainframe OMEGA, the resulting casualties lead Commander Elina to secretly activate Project Tachyon. Sigma studies the future and returns to the past to solve problems, but discovers a shocking truth during the mission.

Travel through time

You gather clues in the future, then return to the past to uncover the truth. Details that seem insignificant at first can have a major impact on the future, and the landscape changes as you search for clues. Sigma can retain memories across repeated trips through time, allowing them to learn about the other characters and build deeper relationships. Each character, including Sigma, has a hidden past, personal trauma and distinct personality traits.

Fight with weapons

Combat combines melee and ranged weapons in varied situations. You can use melee weapons to block enemy barrages and ranged weapons to attack from a distance. Weapons can be randomly obtained at certain stages, and you can change your combat approach to suit each encounter. For example, an electric saw cuts through incoming bullets, while an acid sprayer weakens enemy defenses.

Choose genes and routes

Across runs, you choose from over 200 powerful genes in 10 categories and upgrade them to suit your preferences. Collecting different enhancement genes can unlock powerful synergies, but equipping more of them also raises the chance of manifesting a malicious gene. These genes impose harsh penalties if you fail to meet their requirements.

The map changes with each playthrough, so you must find an efficient route. You can conserve stamina for a boss fight or take greater risks for a larger payout. Your choices shape how you prepare for each challenge.

Upgrade your weapons

Quests unlock weapons and upgrades, and unlocking weapons makes more options available before each stage begins. You can modify your weapons and improve them through battle experience.

Face giant bosses

Giant mutants that follow Mainframe OMEGA stand in Sigma's way. Unlike ordinary enemies, these bosses use a range of gimmick patterns to threaten you. Upgrading enhancement genes and collecting different weapons helps you respond to their attacks.