You know what to do. When power is all you care about and you have the means to obtain it what you then do to keep it is, well, your business, in Subaltern Games' Neocolonialism, a game where, seemingly, nothing is too underhanded to stay at the top.
The game is about ruining the entire world via unchecked capitalism. This is a game of tense negotiation, staggering sociopathy, and sarcasm. This is a game of world conquest without any armies or war--you never own any piece of land, but you will become a powerful influence throughout the globe.
Neocolonialism is a Marxist strategy game for 1-6 players. Your goal is to extract as much wealth from the world as possible in 12 turns. You will buy government votes, make free trade agreements, manipulate the IMF, extract wealth, and ruin everything. Also, the map is upside-down.
The cut-throat features:
• Buy votes in national parliaments
• Elect a Prime Minister
• Exploit the working class
• Make free trade agreements
• Manipulate the International Monetary Fund
• Liquidate your assets into your Swiss bank account.
Recently released, this 'rather deep turn-based strategy game' has a demo available as well, should you be suspicious of such lofty claims.