I remember having an older FPS back when growing up all I remember is weapon 1 was this blaster type thing and you were on the moon (I think). I think it was a Windows based game. Can anyone help?

That's not a lot. VGA graphics? Year (approximately)? What did the enemies look like?

I think it had VGA, and was I think kinda 1998 ish. I know it was newer than Doom. (Its been years so any more, then I don't know. sorry.)

Rebel Moon or Rebel Moon Rising?

http://www.mobygames.com/game-group/rebel-moon-series

Quake 2? I can't imagine that that's the game because it was so famous, but you did have a rechargable blaster, it was newer and it was on a moon.

Rebel Moon Rising sounds very fam. Thanks I think that was it.

Edit: Yes Rising is it the game. Thanks.