Seid: To jeszcze nie koniec...

Seid: To jeszcze nie Koniec... ("Seid: This Isn't Over Yet...") is a fan-made platform game based on the Seid series of games, although it's humorously presented as an official game. The protagonist, Seid, wakes up in a hospital overrun by hostiles and must escape with his life.

The character (represented as a single non-animated sprite) can move left/right and jump with the arrow keys, and shoot to the sides by pressing the Space key. Enemy attacks deplete the player's health which can be restored by finding health pickups. The characters' dialogues are shown in dialog boxes, full of typos.