Battle Survivors is one of many recently released survivor titles. It comes with the usual fantasy theme, some interesting features, and heavy monetization.
The game uses relatively standard looks - vector-like 2d art with outlines, heavily zoomed-out to fit many enemies from the beginning. Both heroes and enemies are tiny figures with barely noticeable faces - or tiny but scary monsters. Interestingly, you'll often obtain skills with effects much bigger than the enemies it'll be hitting. The main screen gives an excellent glimpse of this - giant swords flying through the map, lightning covering the whole screen, or projectiles cutting through tens of foes - that's some pleasant view. The UI look clean and colorful, but aside from the skill showcase - rather generic.
When the round begins, you start just like usual - equipped with a single weak skill, surrounded by weak enemies. Killed monsters will drop gems, and collecting them will let you level up, eventually discovering more random abilities or upgrading existing ones. A nice thing here is a simple combo system. After maxing out one attack and obtaining a supporting buff, a new powerful combo skill is unlocked. From time to time, a mini-boss will appear (just a stronger regular monster), and once in ~5 minutes, you'll have to fight the real boss. Occasionally, you'll find some coins or a useful item - a magnet, health, or bomb/temporary skill. Additionally, you can bring a pet into battle, for a minor benefit, like auto-collecting some gems or additional attack.
Outside battle, you'll be given several ways to increase your chances. There's a well-known perk purchase system with all sorts of buffs, from HP boost to additional bullets - and you can also unlock new heroes. Yet that's not all - after several fights, you'll get access not only to mentioned pets but also to a whole equipment system, with upgrades and forge. You can also choose between standard adventure and more demanding challenges for some extra loot - and there are some offline earnings as well.
Battle Survivors won't force you to watch ads in any form - but reward videos are everywhere - revive, skill shuffle, additional chest skill, etc. Alternatively, you can get a premium subscription or use one of many offers.