Getting Warmer.
Another Clue: Planes have what type of engines. (starts with the letter T)
Another clue: In it's older form its a MutiDice tabletop game.

^Reminds me of some D&D online preview I saw a few years back. But I pass on my turn if it's correct.

CORRECT It's Dungeons & Dragons: Eberron Unlimited

Which is free and fun to play download it either on steam or via their website!

All right, if you pass, the I'll take over.

Here you go, images are from mobygames, but try not to use tineye ;-)

Polanie 2 or Once Upon a Knight if you want the international title. Awesome game!

By the powers invested in me by no one, I hereby declare that you shall do the next riddle!

By your will, it shall be so!

One of the best RTS I've ever played.

Warlords Battlecry 3

or... Seven Kingdoms 2 ;P

No and no ;) Try one more time.

BTW the name of the file contains a little hint (but a very little one)

Tzar: Burden of the crown? :D

See? I told you that one more try will be sufficient. It's your turn.

And don't forget to vote here:
http://www.gog.com/en/wishlist/games/tzar_the_burden_of_the_crown

Voted long time ago ;-) I played it only as a kid, so I didn't figure that out right away. (CD from Komputer Swiat Gry ;D)

My riddle, easy one:

Lode Runner 2

Yes, please vote:

http://www.gog.com/en/wishlist/games/lode_runner_2

I pre-ordered Tzar so I can safely assume that I was one of the first who played it in Poland (they delivered it to me a few days earlier than it occurred in shops). I had some feelings that it would be fantastic game and I was right. My CD is still working well though but... I'm not "working well" anymore. I used to beat the game on hard and now I can barely play it on easy... My RTS related skills vanished long time ago... shame...