Tartaros Rebirth vs Zombs.io
Tartaros Rebirth
Tartaros Rebirth is the revived version of the anime-themed MMORPG that was popular back in the 2000s, Tartaros Online. Featuring everything you know and love from back in the day, this game has something new to offer as well, such as brand-new storylines. Like the original, you'll get to play as one of nine unique characters, each with their own personalities and skillsets. You can switch between them while you're in town, but not in dungeons or instances. Questing is the main way to level up in this game and the grind is real. However, there are tons of places for you to explore and you can even use higher level characters to complete quests for your lower level characters to turn in.The combat system is rather clunky though, so is its controls with keys that you'll probably have to rebind. Battles are played out in a semi-action-based manner, but since you can't really dodge, block or dash away from danger, all the "non-action" can be a bit underwhelming. Not to mention, the graphics isn't updated somehow and although it may have been acceptable back then, it is definitely not something that will appeal to players in this day and age.
So, in short, Tartaros Rebirth is a great anime-themed game to play, despite sharing many similarities with Dragon Nest, for nostalgic purposes but if you're simply looking for a new anime game to play, you might have a better time playing Lineage II: Revolution.
Zombs.io
Zombs.io is in some way a more in-depth version of Moomoo.io. It's basically a strategy game where you build a base as well as defenses, like towers and walls, using the resources you've gathered and once everything's secure, you can then put in your gold stash to start the defending. You'll need to defend your stash from hordes of zombies who will usually attack at night along with other hostile players. You can also build gold mines to generate gold and upgrade your gold stash, which will in turn let you upgrade your towers and walls. You can even spend the cash at the shop to buy better weapons or upgrade your existing ones.Zombs.io may be the more interesting game, as compared to Moomoo.io, namely because it has a zombie- and tower defense-theme. If this is a game for you, be sure to check it out!