Welcome to Unholy Heights, a cutesy 2D tower defense game with a lot of personality and charm. You are the devil that has just purchased a tenement. Just one tenement, there are no scenarios or anything, just this one tenement in the game. As time goes by, creatures will stop by to visit your apartment building, then they'll want to rent a room assuming you have free rooms. If you take them in, they'll take up residence.
This diverse array of creatures will then go about life. They'll head to work, sleep, eat, fall in love, have babies. You really have no control over what they do. The real game comes into play when at the end of the day and night cycle when a hero comes to your apartment to rob it and or kill your creatures. So what do you do to defend your building? Click on your doors to knock on them and they'll come out to fight. The only catch is will they might be at work and not in the apartment. Eventually, the creatures will come back from work and be able to fight if not start fighting when they bump into someone.
Each enemy has one of three types of attacks: melee, mid range and long range. Your foes will have the same style of attacks. Its a nice system and since each creature lives in a different room, you can wait for the enemies to get to the center of your building, then call the first and last apartment to pinch them where they can't run away. They can also do the same to you of course. If one of your creatures gets weak, simply click them again and they'll run away to their room, to your devil headquarters or away from the building.
These daily attacks are more and less a grind. They won't give you much gold. Instead your tenants will give you daily gold in rent. If you want the most gold, you'll take on quests by clicking the sign on your screen. These quests result in larger enemy amounts in usually 3 waves. These 3 waves take place in short amount of times, so make sure your creatures are healthy. Each of these quests has a star / difficulty rating and bonus gold for completing it. Some quests are mandatory in red, and others are optional, but the optional quests seem more like steps to the red quests.
If an enemy gets to the top of your building, they steal gold and try to get away with it. If an enemy makes it out alive, you'll fail the quest and can do it again. It is a very forgiving system that keeps you in the game with no real way to lose. You'll always have creatures wanting to move in if you have an empty building.
So what do you do with all of this gold? When you're not being attacked, you can click on a room and see the inhabitants of the room, along with everything in the room. The tenants will want specific things like CD Players, fans, playing cards, plants and so on. You'll need to buy them things and by doing so, your creatures will be able to gain defense, attack and so on.
You'll also be tasked with keeping your residents happy, which really seems easy enough. Every type of creature has different needs to become happy. Such as skeletons need to defeat enemies, one type needs to live amongst plants or it'll get sick and other creatures become happy or sad based on the overall joy of the tenement. Some of your creatures will become sad if there are creatures they hate living in the building. The bestiary shows everything.
You can raise or lower the rent, and creatures each have jobs, so if they can't meet the rent, they can fall behind. Then it is your choice, do you evict them? Lower their rent? Or just make rent free to keep the good creatures you've worked into deadly killers. When new creatures arrive you can see their job so you know if they're some deadbeat cigarette butt collector or just unemployed in general. That doesn't stop paying tenants from falling in love with unemployed creatures that do nothing.
Eventually, you'll be able to add more floors to your tenement, along with unlocking more types of creatures and objects for their homes. Not just that, but you'll see the creatures fall in love and later have babies. What does this all mean for you? When there are 2 creatures living together, that's just more attackers for you. Their babies will grow into adults and be able to fight as well. Creatures can only fall in love and breed with creatures of the same species. There are consumable items such as balloons that will help a resident find love, and erotic cakes that will help a couple make a baby. Of course there are less funny consumable items like health potions as well. Your creatures will gain health when they eat, so you don't really need to micromanage anything.
In all, this is a really quirky, one of a kind game that I can highly recommend. The only down side is there seems to be a lot of grinding before you can get through the quests. The game does a great job of explaining things especially compared to other sim games. The game also seems underpriced, but if they had different scenarios, I could understand them having a higher price. The game has the right amount of depth to keep me interested, without overwhelming me.