In a rare case of a GOG giveaway following a Steam giveaway, you have 24 hours to add Intravenous to your GOG collection for free

GOG page[www.gog.com]
(claim from the banner on their front page)

Details:
- Account required: GOG.com with e-mail marketing opt-in
- DRM-Free (NOT Steam)
- Offer good thru August 9, 1400 GMT.
- Steam store page for comparison

LH
But isn't it really more about making blood exovenous?