It's a race to see which player can generate enough 'Neptunium' (one of the game's resources) first and, to succeed, your diplomacy skills and interactions with other players are as important as your tactical prowess. Clash Royale comes from the creators of the ever-popular Clash of Clans, and it's sure to steal more hours from your life.
It plays something like a cross between a MOBA and a tower-defense title, and it's a highly addictive concept.
However, these towers are only accessible via two lanes which your army must travel along.
The majority of Clash Royale's gameplay revolves around trying to use resources effectively.
Each creature has their own unique strengths and weaknesses, so it's your job to pick the right guys for the job and make sure your opponent doesn't outmatch you.
This multiplayer online battle arena (MOBA) is as good to play as it is to look at, and while there are the inevitable in-app purchases, the core game is free to play.
In our list of the best free Android games, we look at the some of the Play Store's most impressive free-to-play titles across a number of genres.
The games are sorted by category to make it easy to find the type of games you're looking for.
Head to the best free Android strategy games section to see our latest picks.
Subterfuge is one of the best multiplayer gaming experiences you can get.
It's challenging, it's nerve-wracking, and it's perfectly suited to smartphones.
Subterfuge is a strategy title where each game takes place over the course of a week.
You are charged with taking control of the ocean using a fleet of submarines: the more outposts and factories you control, the more submarines you can generate, which means more firepower to seize further outposts.