I have found a free flash game called Project Wasteland 0 via Armour Games.
It essentially is a story less turn based combat game that has a post apoc setting, and attempts to mimic the style of Fallout/Wasteland.
Its a fun game to play, level up, and waste a few hours, so take a look:
It may not be much... but as far as flash games go that capture the play style of Wasteland or fallout goes... This pretty much as it all... Just lacking a story.
Project Wasteland 0 - Armour Games