More Hints.

27. My favorite piece of DLC is called "perpetual testing initiative"
28. My favorite part of this game was playing the stock market by actually effecting the companies in-game
29. Indie game where you have a bureaucratic role in a fictional country based off of the GDR
30. One of the few games in this series where the title character does not appear, save for a passing reference
31. In this game, you chase after a wedding cake being stolen by a rival gang, while simulating convincing the bride in the passenger seat that everything is perfectly planned for the wedding

32. 2D-Action-Platform-Indie-Moba featuring a soviet space monkey and other wacky characters

25 - man hunt 2

SoulCalibur as guessed by TruckOSaurus

The only fighting game on the list. 'SoulCalibur' is without a doubt the best one in the genre, and with a decent margin at that. It is probably the concept of the game that drew me towards the series initially. Instead of the usual 'martial arts' type of fighting, the characters in this series specialize themselves in weapon proficiency. So the fighting will be done with swords and staffs and a couple of fantasy weapons for the most part.

And that works, gameplay is absolutely excellent here. The game came out during the time in which it was still popular in our family to sit around a console with friends playing local-multiplayer. During the peak of this time, we had entire tournaments. Personally, I was always the character "Nightmare" and I got fairly good at it. It's a time that's pretty nostalgic to me, and a time I wouldn't mind coming back.

Besides the single matches, the game had a fun single-player mode where the player must complete missions through fighting, a concept which still holds up today. It was really a game that turned heads when it came out. In fact, I should credit the game's Dreamcast version as being the game that made the PlayStation 2 'unnecessary'. Graphically, it was years ahead of it's time and caused the newer system seem like it wasn't much of an upgrade over the Dreamcast. And I never got it.

#24: Like the other games in this series, the individual numbers of the year adds up to '9'. Not the first developed nor is any game related to another in story, but by year it is technically the first one in the series chronologically.

Nah that adds up to 27.

#25 Tekken 5

The game I consider the peak of the Tekken series, and consequently my favourite fighting game of all time. Tekken 5 refined the gameplay of the series to near perfection, has the best character roster in the series, and was visually very impressive. Only thing it really missed was the tag mode, which would have made this the perfect Tekken game as far as I'm concerned.

Here's the hint for #24:

The DS version of this Japanese RPG on the PS3 is called Dominion of the Dark Djinn.

That's true.

But it's still not 999 I'm afraid.

San Andreas?  

Actually, after sending the list I realized that I should have another order. Diabolical Box and Unwound future are probably my favorites, although I have the four very mixed in my mind (I played them in a row, except the Last Especter), so the order really doesn't mind...

29 – Mario Tennis 64

Mario Tennis 64 was pure fun. An arcade tennis game with a great gameplay that was easily accessible to anyone thanks to the simplicity of its controls, that with only three buttons (A, B and joystick was everything you needed to master the game, + Z in Bowser mode) obtained a great versatility.

For single player the game was good, it featured various tournaments of increasing difficulty, different modes (the piranha plant mini-game was especially funny)  and a bunch of unlockable features (from courts to secret characters) to keep the player interested for many hours. But eventually, when you mastered the game, it became too easy and a bit boring. Fortunately, this game multiplayer was a blast.

There were three multiplayer modes: normal matches, ring mode and the Bowser court (all three of them were playable in single player too). Normal mode was simply a tennis match in multiplayer, while in the ring mode (my personal favorite) points were added by crossing rings that appeared in the court. This mode allowed the four players compete with each other, which made it extremely fun. Finally, the Bowser court was a a Tennis “Mario kart” mode, including different items and a moving court. Of course, each match was chaotic and very hard-fought, what made this the perfect party mode. Anyway, the fact that most modes didn’t need items to level off the matches illustrate the great design of Camelot, which with Mario Tennis achieved one of the most addictive multiplayers I’ve ever played.