Originally reviewed on Feb. 1st, 2018 on patch v0.569.
TL;DR: if you want porn, look elsewhere for now and check back later. If you want a grindfest game with big boob characters that you can't really have sex with then continue on.
This game currently (as of patch v0.556) only has 3 sex scenes that I'm aware of: the blowjob scene from Alicia (the elf mage in blue and giant wizard hat), the basic doggystyle scene with the summoning demon (it is the same animation for middle and large demons), and one with Fumiki, the wolfgirl (I think she's a wolf). After 3 days of play, with 4+ hours each day as a non-VIP I still haven't gotten to this scene. And if there are other scenes I haven't found them and I don't see them in the patch notes.
If you're still reading them I assume you want to know about the gameplay.
This game is always online (due to AI PvP matches, explained later), and if the game is patched then you cannot play until you patch. You don't have to have a patreon account or be a patron to play, you can play as a guest. And your account is kept as a guest so you don't have to worry about it being deleted between play sessions.
For being a patron you gain early access to quests (not sure if they are the quests described later on in this review or sexy quests) 2x or 3x battle speed (nice but not required), VIP points (increased XP gain, additional rewards every day and additional quest skips), extra devil summons, and additional orbs. Nothing required but it very much speeds up your progress.
This game is a giga-grind. I'm at about 12 to 15 hours in and again, only two scenes. And you get them early. I have no idea how to even unlock the third scene at all. If I had to guess it is 5 staring Fumiki, who is a 4 star monster. And I'm going to now spend this time to go into the current mechanics of the game.
Mechanics
This game is very much like the mobile game Summoners War, or some other game like it. A lot of the same battle mechanics, types of moves, effects, monster progression system, summoning, AI PvP, runes (or Orbs in this game), upgrading the runes/orbs, etc.
Basically you have a team of 4 characters that complete repeatable missions on the map for rewards (summoning scrolls, XP potions, currency, orbs...). The harder the mission the better the rewards and XP.
You advance your monsters by doing battle or giving them XP potions. Once they reach their max level for their star rank (lvl 15 at start 1, 20 at 2, 25 at 3, etc) you have to sacrifice 1/2/3/4 equal star monsters to advance them to the next star. So to upgrade a 4 star monster to 5, you must have them at level 30, then sacrifice FOUR 4-star monsters. But unlike Summoners War, they don't restart at level 1 after evolving.
So if you're unlucky or don't want to use your large monsters summons (which give you 4 star monsters and are rare) then you have to grind four monsters to 4*. Each of them will take three 3* monsters to get to 4. Each of those 3* will require two 2*. You get the idea. Yes, you have to level them before evolving them. Yes, this is an epic grind.
The fights go at 1x speed unless you're a Patron, then you can go at 2x speed and 3x speed.
The godsend for this game is the auto-battle. You click the "start" button at the bottom left and it just plays out the battle according to the AI priorities. It isn't always the smartest so if you're struggling on beating a mission, doing it manually is your best bet.
The recent 5x repeat on a mission is SUPER helpful. It just does the mission 5 times without any additional input from you.
The orb system is simple. You have 4 slots, and each slot can only be used by one specific kind of orb. Each orb has its own base stat that it always has. Red is Attack, Blue is Defense, Green is HP and Yellow is Speed. They can have substats on them, and the level of the orb (so a Level 2 +x) will increase the amount the base stat scales by.
There is a "PvP" mode where players set up their team for defense that other players can attack. You can attack other players' defense team with whatever team you can make. It isn't exactly PvP, as the enemy's team is controlled by AI when you fight them.
There is a roulette feature you unlock after completing the first difficulty, where you sacrifice any 3 monsters to spin it. You get whatever 3 rewards show up. I don't know if monster level/starts changes your odds of things.
There are quests to do things. Win X battles, do Y arena matches, summon Z small monsters, etc. They are acquired through random drop or completing daily/weekly achievements and they give rewards.
What I can say about the game is that it certainly works. It isn't deep, but nothing is really 'broken'.