The famous first person shooter Doom. KolibriOS distribution does not contain it, the port of the game can be found here. Also you will need wad-files of Doom I, Doom II or ChexQuest games - according to your taste.
Aim and rules of the game
The age-old confrontation between the people and hellish creatures eventually become a revenge of the lone warrior to monsters.
The goal of the game is to find exit to the next level and stay with the living at the same time in the labyrinth of laboratories and other buildings, filled with either aliens, not something dirty.
The game is controlled by keyboard. As always, digits - choice of weapons, Ctrl - shoot.