Oddworld: Abe's Oddysee- free on Steam for 24 hours

Now through September 24, 2015 at 10:00 am Pacific, Oddworld: Abe's Oddysee is free to download and keep on Steam

the hope is that you'll like what you see and want to upgrade to the high-def remake, Oddworld: New 'n' Tasty...as it happens, that game is half price ($9.99) on Steam and GOG.com until Friday, September 25 at 10:00 am Pacific...

http://store.steampowered.com/app/15700/

I found out about it from SD. In for 1 for the free version. I added to my library (~400 MB download) and I probably won't ever play it.