Am I overthinking it?

My husband and I are perfect for each other and honestly our communication is amazing. There are zero problems in our relationship and the respect is through the roof, I just want to say that first.

I'm asexual. My husband knew that going into it and has been SOOOOO understanding! He never pressures me or anything and is totally okay with only having sex maybe once a month or every few months. I've always been okay with him watching porn or needing to jerk off by himself. I understand he has needs and I'm not going to let my lack of sex drive bring him down too. We agreed normal things like pornhub and videos are totally cool, just no talking to other people or otherwise interacting in any way.

I stayed up late last night and came to bed way after he fell asleep. When I came to bed, he had music coming from his phone next to the bed. (He had fallen asleep playing on it and it must've fell off the bed lol) When I picked it up he was playing a game called "Star Channel" and I guess it was a space game with super over sexualized characters and aliens and stuff. Looking at it made me feel really uncomfortable and it looked like it was kind of a roleplaying thing where you could interact and do things with the sexy characters. I looked it up and it was labeled as a hentai fan service game. I began browsing his other apps and found 2 others, Once a Porn a Time and Adventures in Tainted Space and they were all similar games that were basically porn. (If anyone has played these or know what they are and can explain them better, PLEASE DO!!)

I feel awful for being so upset, because I agreed he could look at porn and normally I don't have an issue with it... but idk why this disgusted me so much. I've seen the porn he watches and never cared.

I told him the next day what I found and he laughed and said they were just cheesy games that he thought looked fun and downloaded from Reddit. I explained that they were obviously super sexual and meant to be arousing like porn and I wasn't super comfortable with him playing them. He said he would delete them with no hesitation. (Idk if he did since we were still talking) and he said that he didn't really mind that they were oversexualized and didn't pay attention to it. I kind of called bullshit on that because it was obvious the entire point to those games was to be sexual. I mean come on, "Once a Porn a Time?"

I asked him why he needed to play a porn game instead of just watching regular videos and he kept repeating that he didn't realize and didn't care that the games were arousing. He said it's not like he actually jerked off while playing them.

He's never lied to me and I have no reason to believe he would, so I believe him when he says he hasn't jerked off to the games. We've had plenty of discussions about porn and I've always been fine with that stuff and even walked in on him before. I'll be laying next to him on my phone and he'll be jerking off sometimes so I know he's not embarrassed by it or anything. But why intentionally download games like that and then say you don't care or notice that it's porn? He said "Everything is over sexualized now and I just wanted to try the games so I don't care if it's all sexy characters." But I really think that's bull.

I know it's not important, and I know I shouldn't be reacting like this. But normally he's not secretive or anything like this and I would feel better if he just admitted to downloading it because he wanted to play a porn game and feel aroused. But he keeps denying it. Is that something people do and I just don't know about it? Have you or your partners intentionally downloaded porn games and just ignored the fact that it's supposed to be porn? I can't imagine why anyone would do that, like if he was honestly just looking for a fun sci fi game to play there are tons on the app store that aren't literally labeled as "hentai games." He even said he had to go search for them and looked for recommendations on reddit which is even more like wtf. Why admit to half of it?