I've got a document with all the games I'm interested in playing, but as for day one purchases these are:
Aug:
Tacoma (PC, Xbox One) August 2
Hellblade: Senuas Sacrifice (PC, PS4) August 8
Sonic Mania (PC, PS4, Switch, Xbox One) August 15
Uncharted: The Lost Legacy (Uncharted 4 standalone DLC) (PS4) August 22 NA, August 23 EU
Life is Strange: Before the Storm Episode One (PC, PS4, Xbox One) August 31
Sept:
Destiny 2 (PS4, Xbox One) September 6 (!!!)
Cuphead (PC, Xbox One) September 29
Nintendo SNES Classic Mini console launch September 29
Oct:
Middle-earth: Shadow of War (PC, PS4, Xbox One) October 10
South Park: The Fractured But Whole (PC, PS4, Xbox One) October 17
Assassins Creed: Origins (PC, PS4, Xbox One) October 27
Super Mario Odyssey (Switch) October 27 (Yes, I'm buying all 27th games but Odyssey will be the one I play first/most!)
Wolfenstein 2: The New Colossus (PC, PS4, Xbox One) October 27
Nov:
Call of Duty: WW2 (PC, PS4, Xbox One) November 3
Xbox One X console launch November 7
PlayerUnknowns Battlegrounds Xbox Game Preview (Xbox One) late 2017
Listing them out this way makes it seem even more daunting to play them all than even the document I write out each year. Probably a testament to the quality of releases in 2017, in fact there are multiple games that I won't be buying day one but I will be playing in January and February.