I made a light wargame, heavily inspired by the Command & Colors game series. You are restricted to just move a few units each turn, making every move feel crucial. Another benefit is the low downtime makes the multiplayer quick and exciting.

1. Download Party Jousting (Free)
http://store.steampowered.com/app/437900

2. Steam Client> Party Jousting> Right-click for Properties> BETAS tab> Type password:
commanderpassword

3. Select "Commander" from the drop down list, Play!

-Press Esc-button to see the manual-

• Single player campaign, with army management and bosses.
  
• 2 player online co-op missions.
  
• 2 player online versus.
  
• More terrain and obstacles.

A few images in the video has been borrowed from other games, Ive blurred them in the screen shots. I had to rush the greenlight before Steam will close it.
The art style is inspired by "Battle for Wesnoth". The not blurred characters are 100% painted by me.
The final product will of course not use any stolen images.

I recommend you check out the Command & Colors board game series (Command & Colors, Memoir44 and Battlelore), great fun to play against a friend. They got two games on Steam, I personally don't think they work as PC ports - get the board versions instead.
The Great War: http://store.steampowered.com/app/449460
BattleLore: http://store.steampowered.com/app/348400/

Input: Mouse and keyboard
System requirement: Should run on any Windows computer with Shader3.0 (DirectX 9.0) support.
Engine: XNA
Team size: 1
Planned price: 2$

Send a mail with the caption "commander playtest" to
[email protected]
and I will send a Steam key once (and if) the game has greenlit.