RISK: Global Domination is described as 'Play the classic board game that took the world of strategy by storm. RISK: Global Domination is the official, digital version brought to mobile by Hasbro'. There are more than 10 games similar to RISK: Global Domination for a variety of platforms, including Android, iPhone, Windows, Linux and Android Tablet. The best alternative is TripleA, which is both free and Open Source. Other RISK: Global Domination like games are Domination (Free, Open Source), Warlight (Freemium), Landrule Strategy of War (Free) and War Strategy (Freemium).
TripleA is a free (under GPL) turn based strategy game based on Axis & Allies board game. A wide variety of map scenarios have been developed for TripleA (World War II, Punic Wars, Napoleonic wars, etc.
Blood & Honor is an easy to pick up, hard to let go, world domination game. It mixes the classic gameplay of risk and conquest board games with an innovative set of power ups that will give you access to all kinds of advantages, but beware, your opponents will have them too!
Lux Delux is a game of strategy and domination inspired by the board game Risk. Control your armies to conquer and hold strategic countries on the map. The object of the game is simple: Take over the entire world!
iirtw (if i ruled the world) is another clone of the beautiful risk game. It is a new non-commercial project using pure HTML5 and websockets to realize a realtime interaction between multiple players. No flash required.
The action begins in 2050, when humanity by their ignorance destroyed the Earth. The colony you are about to develop is the only salvation for you and the people who have followed you, as well as those who will join you along the way. Represent entire series of TerraNova games.
OpenFracas is a free, open-source game that is similar in style, but not in specifics, to Risk. On randomly generated and customizable maps, humans are pitted against other humans and AIs in an attempt to eliminate all other players or teams.