When there are any other characters being nearby (NPCs and hostiles) the game stutters.
And one time when I ran into a wooden fence, I got stuck there amd was forced to end my run.
Game breaking bug.: During the first story quest I have found all 3 rave posters (during various runs, where I have usually found one per run), got the code from the website, but when I try to put it in the actual sewer doors, the keyboard tells me that the code is wrong (I get wrong code sound) even when I put it exactly as told in the Gateway website. This bug makes me unable to continue in the main story and thus to unlock new stuff in the game.
After trying to input the code and failing, later when encountering some characters telling me to play some music for me, the game wasn't reacting on my input when choosing an answer during the conversation, forcing me to Alt+F4 the game as it was frozen.
When pressing B before taking stuff from a dumpster, then the game doesn't react on the B key input to close the input about whatever I did find and this made me unable to pick up more stuff and forced me to end the run.
Also, I don't know if this is intended feature or not, but the White van enemy looks buggy - one time I found it stuck at the parking lot. When getting caught by it, I either get just damaged or pulled inside it. In the second case nothing more happens once I am in the van. While that goes with the lore, I expect that there should be some game over message happening as when getting killed by other monsters. Also I get placed in front position of the want inside in the back, so it seems to be a bug to me.
Also the run report after returning home seems to be broken to me - it tells me always the game thing (that I have met 16 NPCs for example), regardless if I did it in one run or not.
Also sometimes when I press E while facing some object, I get stuck until I open main menu and go back to the game.
Also the stuttering of the game in the previous post, I think that it mostly happens when I am near the ghost figures, which give me either prayers or the second thing.
I don't know if this is intended behavior or not, but I have also noticed when I enter some interior map and then return back to the main level, everything there resets.
Also after doing the quest for finding the companion of the barbarian like guy in the trail, I still found his companion in the world even after they teleported away (before I met the companion again I used the bus).
Ars Goetica and Skins icons in the computer menu have an exclamation mark each time after I end run, regardless when I find some new entity or not (it started after finding a first one). Maybe it's triggered by encountering the same entity again?
I have encountered two more bugs - when entering the Burger store and talking with the seller there, I got a quest to put 3 posters at unique buildings. Then, I suddenly could tell the seller that I have found some his friend in the sewers... Even when I was never there yet.
And in case of the seller in the starting market (who gives the quest to find the three rave posters and get into the sewers to the rave event), when repeatedly visiting and talking with her in following runs, I get there added same conversation option, asking her about what is playing at the radio.
And this reminds me one more bug - happened with the fairy drug seller - when I opened and closed the trade menu and then tried to re-open it by T, I wasn't able to do it again.
After finding entering Rave party and finishing watching the cutscene and the conversation, the first time I got stuck and was unable to move (idk if it was caused by pressing C or E key there). As there did dissapear the choice from the pause menu to exit to desktop, all I had was to Alt+F4 game, loosing my progress. The bug didn't happen the second time.
After finishing the demo and doing another run, my first run was fine. But then the random generator broke apart - I got buildings clipped to roads, fences everywhere, etc. Making me unable to properly explore the city. And this bug happens again after restarting the game.