Anytime you want to know if you can play a game go to google and google say the game is warcraft 3
warcraft 3 system requirements
look at what you have and look at the requirements so you know if you can play the game before you download it
they might say you need
512 mb of ram
2 ghz single core processor (cpu)
video card blah blah
you have
1024 mb ddr2 ram
p4 intel celeron 2.8 ghz (single core)
integrated vga 251 mb video card
the ram and processor are easy to tell if you can play a game, but the video card requirement might trip you up when trying to decide wether or not you can play a game
p.s. as other have said you can only run very low end graphical games, if you ever get some cash come back here and build a pc! you wont regret it