It's an investment. India is an emerging market, and those folks' purchasing power can only increase. It is truly a great strategy, because his company will be the one collecting data on what they like and what they don't before they're even able to buy stuff. That is a sure way to beat your competition.
The Ukrainians have no obligation to uphold any kind of "silent" agreement. If they want to join an economic organization, it is their right to do so - a sentiment they expressed through Euromaidan.
Ehhhhh, no. Yanukovych was a Putin puppet elected with Russian money that served predominantly Russian interests, hence his defiant opposition to what the populace wanted - steps to integrate with the European Union.
His government turned on its own people and cracked down on protesters, leading to the events of EuroMaidan. Putin of course would not have the European Union in his backyard. He also certainly did not want his main access to the Black Sea to be cut off, so he used the turmoil to annex Crimea, while keeping Eastern Ukraine as unstable as possible.
Except in this case the 75% was going to the studios (Valve got their flat 30% cut, as with everything, and Bethesda elected to charge a further 45%). The modders were getting 25%.