Peripeteia (video game)

Peripeteia is an indie immersive sim in development by Ninth Exodus, a Polish studio. It entered Steam Early Access on 21 February 2025. The player controls Marie, a superhuman cyborg with amnesia, who searches for a secret bunker in a post-Soviet cyberpunk Poland.

**Gameplay** As an immersive sim, Peripeteia offers multiple ways to complete its levels based on player actions. Non-player characters give missions in exchange for information or items, all leading toward the goal of reaching a hidden bunker outside the city. Mechanics include a free-form grid inventory system, cybernetic implants activated via function keys, semi-realistic firearm reloading that requires manually replenishing empty weapons in the inventory, a timed hacking minigame using a heat-map keyboard display, climbing and physics mechanics, and light/sound stealth mechanics.

**Plot** In the mid-late 20th century, the Cold War escalated into a third world war ending in a nuclear holocaust. Most major population centers were hit, but large parts of Poland, including Warsaw, remained relatively untouched. The destruction of NATO and the Soviet Union created a power vacuum filled by the "Polish Solidarity Republic" (PSR), formed from the Polish People's Republic and the Polish Catholic Church. After the war, a large area of Eastern Europe called the "International Disputed Zone" (IDZ) was claimed by three surviving nations: the PSR to the north, NATO to the west, and the "Second Union" (a revived Soviet Union) to the east. The PSR claimed and occupied large parts of the IDZ, but control is unstable due to Second Unionist separatists and a counter-culture movement called the "Joy Cult." Cybernetic implants, originally developed as prosthetics for soldiers, became widespread as armies shifted toward cybernetic bio-computer warfare. Marie, a cybernetic super-soldier, wakes up in a trash heap moments before being dismantled for parts by a black-market scrapper. She has no memory of her identity or how she got there, but quickly learns to use her implants, which include a spy drone, enhanced movement, and night vision. The rest of the plot follows Marie as she journeys toward the only other memory she has: a secret Soviet bunker filled with strange, futuristic technology.