The reason I said that is because I found it becomes increasingly engaging and tricky the deeper you survive, breaking up similarity. Did you try different difficulty levels? Some games' enjoyment can significantly depend on a personally fitting difficulty level, whether hard or easy.
I'm not sure of what the reviews were like back then, but they're insanely high on Steam, more than even what I had expected.
13 Sentinels: Aegis Rim (fantastic visual novel with an insanely complex story until you find out...)
The game's time-traveling events, all the locations you can go to, and the biomechanical enemy kaiju and your giant sentinel mecha fighting them don't exist; all the high-school staff and students have simulated bodies in a virtual world and are actually continually, rapidly rebuilt DNA goop in a cryoship whose computer got infected by a virus that involves an invasion of Japan by colossal, unmanned Martian terraforming machines-gone-rogue from a fictional, in-game manga, whose victories against the kids keep causing the computer to go haywire and resetting the simulation, repeatedly melting down the protagonists' half-formed bodies and restarting their bodybuilding cycle hundreds of times—until the start of the game, which is when you together finally break the loop in this last iteration, land on the new planet, and restart humanity post-Earth (which has been environmentally annihilated by ourselves, obviously).
Talk about a run-on sentence! And I don't know if "bodybuilding" is normally used in this literal way, lol.
Wait, you don't know what's causing them? I know exactly what causes mine (my own same-file-editing on different devices before they've had a chance to sync after the first edits).
Who is that?