Quake

Enter the console and type any of the following cheats:-

crosshair 1 - gives you crosshairs

fly - flying mode (d=up C=down)

foy x - increases peripheral version (where x is your field of version)

give #x - gives weapon #x - 3=shotgun, 4=nailgun, etc

give c #x - gives x# cells

give h #x - gives x# health

give n #x - gives x# of nails

give s #x - gives you x# of shells

give r #x - gives you x# of rockets

god - god mode

impulse1 - shotgun

impulse2 - super shotgun

impulse3 - nailgun

impulse4 - chain nailgun

impulse5 - grenade launcher

impulse6 - rocket launcher

impulse9 - all weapons

impulse252 - pentagram of protection (30 seconds)

impulse253 - ring of shadows (30 seconds)

impulse254 - bio-suit (30 seconds)

impluse255 - quad damage mode

kill - commit suicide - restart level

map e# m# - level warp

map end - taks you to the last level

noclip - walk through walls

notarget - invisible to enemies

r_fullbright 1 - everything is bright

sv_gravity ### - sets gravity to ###

version - gives you your version information