Castle Clash vs Duelyst
Castle Clash
Castle Clash is perhaps one of the most marketed mobile MMO strategy game aside from Clash of Clans. The game features an addictively competitive gameplay where players will build and design their own bases, complete with defenses, heroes and their own army. They can also send their armies out to conquer other players. However, the game opted to include some elements of RPG into its gameplay, allowing players to use their armies to battle epic bosses with friends, have intense hero-vs-hero showdowns, or be part of a massive Guild-on-Guild war. The game even has co-op modes for those who aren't huge fans of PvP as well as adorable pets to collect.Castle Clash is perfectly designed for fans of games like Clash of Clans, and though it may not be as popular as the latter, it is still a pretty good alternative game to play. Do give it a try!
Duelyst
Duelyst is a free-to-play MMOCCG with an added turn-based and strategic gameplay and a rather epic storyline set in the beautiful world of Mythron. Although you'll be building decks using cards from five different factions and playing them, the cards will turn into awesome-looking 2D sprites when played on the board. Aside from the fast-paced gameplay, the board itself is also tactically designed, making the positions of each of your heroes incredibly important. The game has some really fast-paced mechanics and several game modes as well.Duelyst focuses more on online gameplay and as such, this game can be a tad bit competitive, but if you're not the "climb-the-ranks" sort, you can still enjoy the game as it is.