Shooter
System Shock, Quake II and Wolfenstein 3D which held the 1st, 8th and 9th ranks are now released and therefore left the list. No One Lives Forever GOTY is the new queen!!!

MechWarrior 2, Bioshock and MechWarrior 2: Mercenaries entered the list.

Now that we have 3 MechWarrior games on the top 10 list, I hope it will give GOG good ideas where to focus on :)

License hell, probably..

Crowdfunded
HuniePop which was ranked #5 is released and therefore left the list. Mighty No. 9 entered the list.

Crowdfunded
Undertale entered the list from #3.
Darkest Dungeon is officially confirmed for release and therefore left the list.
Grim Dawn now has more votes than Planetary Annihilation and Carmageddon: Reincarnation

I'm surprised by the popularity of Mechwarrior. An expansion (?) has more votes than Soldier of Fortune. Bah.

I would love too see this game on GOG

Crowdfunded
Starbound (#5) is now on GOG and therefore left the list. Slain! entered the list from #6.
Undertale now has more votes than War for the Overlord.

RPG:

Diablo II isnt at the 2nd position anymore, it "only" has 20910 votes, while Vampire: The Masquerade - Bloodlines has 21673 votes.

Crowdfunded
Undertale (#2) is released and therefore left the list. Skullgirls entered the list from #7.
Grim Dawn now has more votes than Slain!.

RPG
Vampire: The Masquerade - Bloodlines now has more votes than Diablo II.
Fallout: New Vegas entered the list, pushing Diablo: Hellfire out.
Fallout 3: Game of the Year Edition now has more votes than Final Fantasy VIII.
The Elder Scrolls IV: Oblivion now has more votes than Diablo II: Lord of Destruction.

RTS/Turn Based Strategy
Age of Empires now has more votes than Homeworld 2 and X-COM: UFO Defense (UFO Enemy Unknown).
Dune 2000 entered the list from #8, pushing Dune II out.

Crowdfunded
Grim Dawn, which held the position #5 on the list, is now released. Factorio entered the list from #8.

Crowdfunded
Slain!, #5 on the list, is now released and left the list. Balrum entered the list.
Factorio now has more votes than Planetary Annihilation.

RTS/Turn Based Strategy
X-COM: UFO Defense (UFO Enemy Unknown) which stood at #4 is now released and therefore left the list. Command & Conquer: Red Alert 2 entered the list.

Love the list, especially the changelogs!