From the name, strugglesimulatorv115bynomaaaaadikpcgames looks like an indie executable—possibly a joke app or low-effort “game” where the struggle is making it run.
The extra text utmpass evzocextyf upd resembles:

No legitimate game or software needs utmpass as a run parameter unless it’s hiding something.

Game updates bring bug fixes, new levels, or rebalanced difficulty. For struggle simulators, version 1.15 might include:

If you cannot find v1.15 on official stores, the update may be exclusive to a mod or a private build – in which case it is safer to ignore it unless provided by a trusted creator (e.g., the actual developer on Itch.io).

However, I can write a fictional meta-story about a struggling indie developer, a cursed “simulator” game, and a mysterious update log that reads like a puzzle. The title would be something like:

“The Last Update of Struggle Simulator v1.15”

Here’s the story:

UTMpass: evzocextyf_upd

A co‑op physics‑based game where you control two arms of a abomination. Regular updates, safe downloads.