I'm currently addicted to quite a few different games.
First,
Monster Nursery, is like the old Playstation game, "Monster Rancher". It generates monsters from your facebook friends (don't worry it doesn't spam them or anything.). It has the same cute graphics / monster types, and you train it and battle with it in the same fashion as Monster Rancher. It's fun trying to get rare monsters from your friends. There's an actual Monster Rancher app too, but it's not as good as this! Because it doesn't actually randomly generate monsters, which to me is the funnest part!
Here's a couple of trailers:
https://youtu.be/y4K7QnoP4lU
https://youtu.be/59RvFDA9H5g
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Next,
Love Live School Idol Festival. It's a card game and music rhythm game, like DDR for your hands. It's based on the anime of the same name. The gameplay focuses on collecting characters in different outfits, as "cards" and building teams with different statistics to boost your score during the rhythm game. There's always new events and this is where the online play comes in, playing with up to four players at once on a song, or competing in their high score competitions, for rare limited edition cards. I'm addicted to collecting things, so it's always exciting to get an ultra rare card.
The music is really good if you like jpop or anime. And it's just fun and satisfying. It's a quick little game, you can play for 5 minutes, or 5 hours lol.
https://youtu.be/WTdYfhsawsw
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Similar to the above, there are some other card-collecting games I'd like to recommend.
My favorite of which is
Devil Maker Tokyo. It has pvp battles, and pve, and guild versus guild too. It has a really good story line, and is pretty fun. Although you cannot directly control your team in battle, the outcome is determined by their AP (attack power) and DP (defense power). The artwork is anime style, and varies, I think they have a couple different artists working on the game, which is my only complaint. It's still mostly good, but sometimes feels disjointed due to different styles/techniques. You sacrifice cards to level up other cards, you can equip items, and evolve cards and it's pretty neat.
You can see a bunch of videos here: http://palmpleglobal.boards.net/page/videos
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Next,
Valkyrie Crusade, another card rpg - this one has resource management and city building elements, plus all of the above as the last one. This one has more consistant artwork. And you can actually control your team in battle which makes it more fun and interesting.
Here's a video of a guild battle:
https://youtu.be/3dsmqnQzzm4
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Soccer Spirits is another fun card-rpg mobile game. But it crashes a lot on most devices. Because of this, I play it on bluestacks, on my PC. It uses a lot of ram. It especially crashes a lot on older ipads with less ram than newer ipads/iphones. Android supposedly does not crash as much. Anyways this game is really fun. The story is completely stupid/silly. But the game play is really interesting. You collect different cards to build a soccer team, and ALSO you can collect different manager cards to help boost your team, but the managers can't "battle" (play soccer). They just have effects or stats that enhance the rest of your team. You can have multiple managers in effect at a time. Really fun. Really great artwork. When playing soccer you can try to steal the ball, or if you have control, you can pass it to a team mate, or try to shoot for a goal, etc. It's unique. It's fun. It's cute. And It's addictive.
https://youtu.be/f2JZGCAUPic
https://youtu.be/MmK6h2Rpr4I
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Chain Chronicle is a great game. It combines card collecting with tower defense. It has one of the best story lines I have ever seen on mobile games, and pretty "water color" styled artwork.
https://youtu.be/q1h5FCGnXYw
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A very humorous card game, with a unique concept, is Square-Enix's
Song Summoner this uses any of the music in your itunes library to generate cards that can be used to battle in final fantasy styled tactical gameplay. It has a decent story line, about a young man trying to save his younger brother. The randomness is fun, it's fun trying different songs to see what cards you will get! and the gameplay/combat is also fun if you're a fan of strategy RPG games.
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Last for the card type games, I also enjoy
Electro-Girl You start by choosing what type of android you want. There's "cute", "cool", or something I forget LOL I think it was "sexy" or "glamorous" or "stylish" something like that. This determines the type of cards that you can get and will determine your first Super Rare card which you'll be using a lot in the beginning. It plays similar to all of the above games I recommended for card-rpgs. I just like the artwork, and the android theme.
https://youtu.be/fAJRAxiEeHI
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Like most others on this forum I am playing
Fallout Shelter right now, but it crashes a lot for me because I have an older ipad that is not "supported". I can't wait for the android version so I can play it on Bluestacks.
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I like all 3 "gacha" dress up games by Ambition. They are:
Moe Can Change
Animal Boyfriend
Fairy Doll
Each one features similar game play, monthly events with limited edition items, collect rare clothing and hairs for your character(s). Train your characters to alter their personality. Etc. Moe Can Change has a lovely anime looking girl. While Animal Boyfriend has a male character for you to customize. Fairy Doll has a super deformed chibi anime girl / child looking character. All 3 games are fun. Here are some of my characters I have personally made:
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First one is hard to stop once you start it up, the other I just keep coming back to, its so hillarious 
. I literally go on it multiple times a day!
