All time lowest prices for these games according to ITAD.
Don't forget to buy through Shopback - you will get 3% cashback I believe.
Dex: https://www.fanatical.com/en/game/dex
Door Kickers: Action Squad: https://www.fanatical.com/en/game/door-kickers-action-squad
Resident Evil 0 HD Remaster: https://www.fanatical.com/en/game/resident-evil-0-biohazard-…
Lethe: Episode One: $2.04 AUD: https://www.fanatical.com/en/game/lethe-episode-one
Ken Follett's Pillars of the Earth: $8.19 AUD: https://www.fanatical.com/en/game/ken-folletts-the-pillars-o…
Planet Zoo: $45.46 AUD: https://www.fanatical.com/en/game/planet-zoo
Enjoy!
Historical Low on Lethe also, which looks interesting and has generally good reviews.
Might pick it up for some more horror goodness since news of the new Amnesia game has given me the itch once more :P
https://www.fanatical.com/en/game/lethe-episode-one
Can personally recommend Dex also if you're after a 2d Deus Ex style platformer/RPG.
Absolute steal at that price.