TCP or UDP for ports?

[shafin25]

TCP or UDP. I'm not sure which to choose to forward.
I want to forward for games like BF3, Minecraft, etc etc. Should I have it UDP or TCP? I've checked online and I'm not sure how to choose

[Ad Bot]

[Feep]

Both, I believe.

[Night Fox]

usually it's both
I know for Xbox Live, two ports are UDP only, and the other two are both

[lordician]

They usually state what ports and what to do (UDP and/or TCP)
Otherwise check websites like portforward.com.

[MegaScientifical]

Better safe than sorry.

Then again, which is safe and which is sorry?