Ok so here is what i know about this game, it worked on my pentium 1 windows 95 its a first person shooter game where you kill monsters, i remember that it didn’t have a save so you had to play it all over again and there were multiple stages, the ones that i remember is that there a castle like place were you shoot monsters then if you pass it there was a boss fight of a big bat/vampire monster, after that boss fight you kill zombies and it gets harder and harder and i don’t remember anything after that i’m afraid.

I also remember that small bats were annoying to kill because they were fast and drained your life when other monsters attacked you. Its like doom but its not, i was remembering playing this game all the time when i was 5-6 years old it was at 2000-2001 but the game could be older because i remember my uncle installed it on our pc

i also remember it was quite bloody in effects when you kill or shoot a monster

if anyone knows of such a game please let me know, i’ve been searching for this game for years and couldn’t find it because of how little i remember about it but im sure some of you remember it

thanks in advanced guys

Edit: ok i remebered a couple of things about the bat boss battle he had like stages to kill him, he could summon small bats to attack you you used guns in that game no magical powers and i asked my sister who owned the game at the time and she said the period was between 2001-2003 hope this helps and ill add anything if i find it myself or if i remember anything useful

Edit 2: i know this ain’t much but i’m gotta put a 10$ reward if someone finds the game i’m looking for