Version reviewed: 0.19.2 Beta
Zombie's Retreat 2 is a sequel to Zombie's Retreat, which was a fun RPG Maker game with an action element that kind of reminded me of Zombies Ate My Neighbors, where you go around shooting zombies in a top-down perspective. It also added some elements of survival horror like limited ammo/items and simple puzzles to keep things interesting. ZR2 plays much the same way but adds an element where you can add buildings to the safe zone you inhabit.
I liked Zombie's Retreat so much I had to play this, even though it's currently incomplete. Contentwise there is not as much in this game as in ZR1 yet, but it does look like eventually there will be a lot more. There are four rooms occupied by girls and room for four more girls to move in. Plus there's space for god knows what kind of buildings to be built in your safe zone. So yeah, there could be a lot of content down the road. Just keep in mind when reading my comparisons to the completed ZR1 that this game is not yet finished.
The first game took place at a summer camp, this one takes place in a city. I have to say the summer camp setting felt more classic horror and more creepy, but the city setting is cool. There have been a lot of quests that have taken advantage of it and the dev has barely scratched the surface. There have been missions in a police station, high school, arcade, subway, hospital, and a literal criminal underground. There's not even a mall yet, and you can't get much more classic zombie than that. I am hoping for more in the school myself...
One thing I'll say is that I hope future updates can add a few more interesting scenarios for the sex scenes. The first game had some really hot scenes, like the one with your sister, (I mean "tutor") at the glory hole was ACES. And there were some great scenes with your mom ("maid"), like the bath scenes and the scenes where you watch TV with her on the couch. There isn't much that is really memorable like that in this game yet. There is a good scene where you spy on your mom in the shower, but the bath scene that you unlock after is not as good as in ZR1 imo. The best scenes so far have been with your aunt, I liked the one where you're in the apartment building hiding from the zombies. The thing is it seems like the mom and sis storylines are basically done, which concerns me. I would be let down if the game did not add more good stuff to do with them, not gonna lie.
Aside from incest characters, there are other girls you can rescue. They are pretty good overall so far, not all of them will be to everyone's taste which is what you expect from a harem game. I like Fiona, the tomboy mechanic/construction worker who helps you improve your safe zone. Stacy is rather cute as well, a waitress who is a friend and classmate of your sister's. You can get milkshakes from her to restore your health and give you other helpful boosts, a new mechanic to this game. Finally there is Lucy, a cop. She is MEGA hot and currently the only character without a sex scene, although there is a groping/massage scene. She seems to be a big driver of the storyline so it might be a while before we reach the end of her quest line. That's okay, I will wait for her.

There is also a hot news anchor we have seen. I expect she'll be available down the road...
Finally there's the MC. I have to say, compared to the MC of ZR1 this new design is kind of a head scratcher. It just feels out of place how all the girls have normal designs (skimpy but normal) for a contemporary urban setting and then you have this guy who looks like he stepped out of Naruto. It is just hard to put yourself in his shoes.
In future updates I would like to see another teen character with a tie to the high school. Maybe a cousin or even another sister to the MC. I would like more scenes with the girls I like (there's a revolutionary opinion). If we got some impregnation stuff that would be a huge improvement over the first game, where only a couple girls had this option. Also, as of now the idea of adding buildings to your safe zone has not been explored much. Hopefully this aspect of the game is fully realized because it's a cool idea.
Overall I like this game and I could see it surpassing ZR1 when it is complete.