A possible concise summary is:
The user watches a video of a YouTuber playing three scary games. The first game is about a nuclear fusion experiment that creates a giant spider creature. The second game is about a dark and twisted house with tumors and robots. The third game is about a murderer who hides bodies under the floorboards and is haunted by visions and voices. The user comments on the games and reacts to the scares.
Here are the key facts from the text:
1. The narrator is playing three scary games.
2. The first game is called "Vainless".
3. The narrator warns that the game may affect people with photosensitive epilepsy.
4. The narrator's parents are away for the weekend.
5. The narrator is playing the game in a dark room.
6. The narrator is using a flashlight to navigate the game.
7. The game has a minimalistic art style.
8. The narrator is trying to find a way to defend themselves in the game.
9. The narrator is playing a second game called "Romut".
10. The narrator thinks that the game is about fighting tumors.
11. The narrator is playing a third game called "The Floor is Breathing".
12. The narrator is warned to adjust the game's volume to a comfortable level.
13. The narrator is playing as a character who has killed four people and hidden their bodies under the floorboards.
14. The narrator is trying to complete tasks and avoid monsters in the game.
15. The narrator is experiencing strange and terrifying events in the game.
16. The narrator is trying to figure out what is happening in the game and what they have done.
17. The narrator is reading a letter from someone who is accusing them of murder.
18. The narrator is trying to escape from the police.
19. The narrator is experiencing a sense of unease and fear in the game.
20. The narrator is impressed by the game's atmosphere and sound design.