Day of the Tentacle
Sam & Max Hit The Road
Beneath A Steel Sky
i got all those games before i had internet access, i've been playing more games without cheating lately and feeling better for it when i finish them, but some things in adventure games are so blindingly obvious when you just put your mind to it that i like to think of using a walkthrough as something you use to disguise the smell of a brainfart...
i also completed Blade Runner without any kind of help.
other non-adventure games i've completed without cheats or help:
Unreal,
Halo,
Soul Reaver 2,
and probably a few others that i forget, i'm also very close to completing Deus Ex 2 and haven't cheated once
Sam & Max Hit The Road
Beneath A Steel Sky
i got all those games before i had internet access, i've been playing more games without cheating lately and feeling better for it when i finish them, but some things in adventure games are so blindingly obvious when you just put your mind to it that i like to think of using a walkthrough as something you use to disguise the smell of a brainfart...
i also completed Blade Runner without any kind of help.
other non-adventure games i've completed without cheats or help:
Unreal,
Halo,
Soul Reaver 2,
and probably a few others that i forget, i'm also very close to completing Deus Ex 2 and haven't cheated once