Upheaval is currently at a very bare bones prototype level. So i thought this guide would be handy, as there is no manual / in built help available at the moment. 

Controls

W/ S or Up/Down cursor keys to move selection in menu. Use space or enter to select. Escape will  bring up pause menu in game.  

Currently game options are  music/sfx level and resolution/full screen choice.

Mission

Your job is to maintain your presence in the conflict area (south china sea), to do this you must not be defeated by any other country. At your disposal are the following choices that can be made each turn.

Country Affairs - You have diplomatic and intelligence choices for each country, to improve or reduce relations or to support or destabilise insurgents. Supporting insurgents always has the chance of being discovered and causing diplomatic problems. Helping the country against insurgents generally helps in your relationship.  

Policy - Different weapon types can be purchased, to build you task force. You then have strategic action options on which countries your forces should engage/defend against.  Deploy forces to your territory borders, if opposition forces are reported, to defend against attack. Or build up forces on an opponents border to escalate tension and force armed conflict.  

Battlefield Forces

There are 6 different military force types. Destroyer, Frigate, Missile Boat, Strike Aircraft, Anti-Sub Helicopter and Submarine.  Description and cost should give some insight into effectiveness against each force type. 

Win / Loss 

The game ends with a loss, when you a lose a battle and are therefore forced out the conflict zone.  A win is given when all other countries have been defeated (by any means at your disposal) and you remain as the sole country with control of the conflict area.

Feel free to comment if you have questions on where you would like more detail/explanation. I'll be expanding this as the game develops, and will use this for the basis of the in-game manual/help.