Gems of War - Match 3 RPG

There are daily and 7 day rewards plus some daily event rewards. Their system is fair, but is still present. If I did not log in, I would be missing out.

Leveling team skills requires random drops that can only be acquired by going to set locations and replaying them over and over... or by spending money to avoid said grind.

Gem purchase is heavily encouraged in order to collect cards and ascend harder to acquire units.

PvP is very optional in this game, which provides less pressure for casual players. That being said, the PvP circuit will be heavily influenced by acquiring stronger teams.

They do a nicer job of this than other games, but guild events are timed and if you were to choose not to play, you would hurt the guild's chances of rewards.

It's a collection game, and this collection is achieved through grinding and/or money. Over the course of time, account value will increase.

Whenever a legendary drops, it immediately offers you the chance to fully level them for a cost... which expires at the end of a day.

You can spend money or ingame currency to purchase boxes that have higher level characters and materials.

Oddly enough, the developers admitted in reviews to making the ai cheat in favor of new players to give them an easier time of things.

When you complete any puzzle, what you get from that puzzle is luck based.