The Kins posted:

Here's some full versions of old shareware games that have since been freely released online by the rights holders. You'll want DOSbox for these, unless otherwise specified.

Alien Carnage
Bio-Menace
Boppin' (Windows port!)
Dark Ages
Death Rally (Windows port!)
Major Stryker
Xenophage: Alien Bloodsport
Tyrian (Ported to pretty much everything under the sun)
Tyrian 2000
God of Thunder
SkyRoads
Jetpack
Kiloblaster
One Must Fall 2097
Overkill
Stargunner
Xargon

There, that's far from definitive but it ought to keep you busy for an afternoon...