This game is like a westernized version of Seed of the Dead games, a full fps game with adult themes. They share the same clunkiness and bad control, and an even worse game mechanics that I was really grateful there's a cheat table and even a shortcut so I don't have to actually play the fps. Nothing good I can write about the fps section.
Now for the adult section, they have different visuals, Seed of the Dead with its anime style and Wars and Roses with its western-ideal real style. The biggest difference is the amount of content they offer, Seed of the Dead currently have many, and varied hentai scenes, while Wars and Roses currently only offer ONE, and just ONE scene. SotD lets you change the heroine appearance freely while WaR currently doesn't have any costume or character customization option. SotD have some sexy minigames while WaR have none. SotD have optional NTR routes while WaR have only one route. SotD have gory hentai death scenes while WaR have none. SotD even lets you bang your girls, in real time, in the middle of fierce battle with your enemies lol.
To recap, for me, SotD gives me much better values as a games compared to WaR. I sink tens of hours playing SotD, even with its horrible fps experience, because there is some content to be uncovered in the games, while in WaR, with the same horrible fps exp., it gives me nothing but frustration, and I give up playing after reaching 5th mission (rescuing Maria) and just using cheat to unlock all of the girls.
The only stand up features of WaR is the high-quality model of its girls (I'm hesitate to say that WaR is a glorified Daz3D viewer, but for me it really IS a glorified Daz3D viewer), some of it looks so stunning and this is a very stark contrast with SotD girls which looks rough and unpolished. But then again the varied scenes, routes, and customization ultimately makes me regard SotD higher than WaR. I hope that both devs continue to release a better games in the future.