Doom III.... big red circle with 18 inside it on the spine
HalfLifeII.... white circle with 15 on the spine
Halflife generation.... elspa logo on back with 15+ inside it
Halo.... 16+ on front of box
Unreal Tournament 2004.... 16+ on front of box
Homeworld 2 (strategy).... 12+ on front of box
Quake II.... elspa 15+ on back of box
Elite force II.... 16+ on front of box
Space colony.... 12+ on front of box
Evil genious.... 12+ on front of box
Return to castle Wolfenstein.... red circle with 15 on front of box
Half life 2.... red circle with 15 on front of box
Gunman Chronicles.... elspa 15+ logo on back
Sim City 3000.... elspa 3+ logo on back (as if your average 3 yr old could play simcity3k)
Black and White.... elspa 11+ logo on back of case
Doom collectors edition.... red circle with 15 inside
Messiah.... red circle with 15 inside
thats just what I can see on the cases visible from where I am sat, every case I looked at has an age rating on it, with Darkbasic you can make "the fluffy bunny hoppity simulator" or "the human flesh slaughterhouse and necrophiliac simulator", but the choice of content is down to the coder and hence outside the control of TGC, with the pointy clicky thing you get violence built in by default, so it needs a rating, you might have noticed notepad doesn`t have any rating either, despite it being possible to write anything from poems to porn stories with it, same difference.
Windows: 32 bit extension/graphical shell for a 16bit patch to an 8bit OS originally coded for a 4bit CPU, written by a 2bit company that can't stand 1bit of competition, now available in 64bits.