The latest release includes 25 unique missions that you can play. Each mission has specific challenges and obstacles that puts a twist on regular play. For example, one mission requires you to conquer at least one country on each round. Another mission has the computers forming a loose treaty and ganging up on you.
In free play mode, the game allows up to 6 players, which can be either human or computer. For the computer players, you can choose between easy, medium, or hard difficulty, where each one uses a different playing strategy.
This version has ads. For an ad-free version, please check out Just Risk It Missions. https://play.google.com/store/apps/details?id=com.bairdhome.riskmissions
For other great games by Sam Baird, check out Strategy (Stratego), Log Jam (Rush Hour), and Connect 4 (Connect Four).