Splinterlands is a unique cards based game that is lying on the steem blockchain. It gives you the opportunity to spend your free time enjoying a game and at the same time earning real money. It's secure as its on blockchain and everything is transparent and public.
The game is actually browser-based so you don't need to install heavy Gigs of files. There is an alpha version of the mobile app that is also launched and they plan to release on App Stores in the future.
The best part of me liking this game is that I can earn real money, in fact I've sold my 2 cards for $600. Which was like hitting a jackpot for me. But yes you need to invest more time and money to earn more and Luck matters too.
See you at the Battle Field. . :D