I've tried to choose my favourite mod for each game. My other mods should be searchable from these links.

FlexFOV - Minecraft. Increases the FOV up to 360 degrees.
It took 3 years to get a basic version working, then several more to make it properly usable (not just a cubemap). YouTube demo

Stormtrooper - PULSAR: Lost Colony. Significantly reduces the player's accuracy.
All the mods are hosted on the community Discord rather than a mod hosting site.

I originally made Item Swap for Void Crew. The developers thought it was a good idea and decided to add it to the game (with permission).
I decided that I could do even better and made Faster Swap — modding the devs implementation of my own mod.
I have another improvement idea just in case they implement this mod too.

Full Auto Multitool - Jump Space. Hopefully prevents RSI from rapidly clicking.
Jump Space uses IL2CPP, so modding is significantly harder until the devs choose to release mono files.

Honk - Derail Valley. YouTube demo

I did not make all of the mods registered to NihilityShift. You should be able to check the author(s) on GitHub for each mod. All of my mods are open source, though the source may not always be up to date.