Not exact matches
Beaver Defense will feature
upgradeable skills, weapons,
hero units and defenses as wave after wave of evil beavers attack.
Players customize their
heroes through a deep RPG layer featuring
upgradeable weapons and rich character skill trees.
OTTTD is from the modern branch of the tower defense genre that believes the player should constantly be occupied with busywork (something I'm not personally a fan of), and with that in mind, you get the full smorgasbord of clickables: controllable
heroes (each of which has their own skill tree and equipment loadout),
upgradeable towers (each of which can also be converted to one of two advanced types), and various cooldown - powered
hero abilities.
When playing the game, if one of your (
upgradeable)
hero units succumbs to too much damage, they can't be used for a set amount of time.
It's a vastly different story on iOS, of course, where that platform is over-saturated with examples of tower defence games, and indeed, which has served as something of an evolution chamber for it, with various features like
hero units and
upgradeable towers added over the years to the basic «plant down some towers to defend against waves of enemies» template.
Like the first Pillars, this one delivers an epic single - player campaign, now with more extensive character customisation (like multi-class
heroes), a new companion system, and an
upgradeable ship that you'll captain across the seas.