Broken Shit currently in Stellaris (Without the exact steps)

[redharo]

BASICALLY FREE UPGRADES!
Upgrade your entire fleet for the cost of upgrading one ship,

FREE ALLOYS
when you "Upgrade" your ships to naked verstion of themselves, you get alloy refund, you combine that with the above exploit and u get free alloys.

FREE SHIPS

NAP DOESN'T MATTER!
If you rival the guy that you have NAP with, it cancels the NAP, but doesn't give u the 10 year peace time, so you can instantly wardec afterwards

CONTROL EVERYTHING
You can tell any neutral/hostile/friendly ships you can see to move to any location. Set loose the leviathans on other players!

RESEARCH EVERYTHING
Hiveminds can get research for free because they use minerals for research, yet mineral/energy shortage doesn't affect research

FREE NANITES!
nanites doesn't have resource shortage malus. Shortage does not affect the buildings

FREE EXOTIC RESOURCES
exotic resource synthesizers produce the exotic goods at 100% of the capacity even during mineral/energy shortage.

SOL START GAIA
this gives you 2 guarenteed gaia world, one in sirius and other in alpha centauri

PARADOX, PLEASE FIX THESE GAMEBREAKING BUGS! ESPECIALLY THE UPGRADE BUG, THAT HAS BEEN IN THIS GAME SINCE THE RELEASE.

 

[SpectralShade]

you forgot infinte resources from the market

There was also one other thing I noticed that gave me limitless resources, but I forgot what it was now since I didn't bother persuing it...

 

[RupertTheBear]

You can also de-telepath your transcendent pops by using a pre-Ascension template. Fun times

 

[Mr. Capiatlist]

There's a bug report forum for this sort of thing, though exact steps are always helpful.