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Hyperdimension Neptunia Seriessystem requirements woes(5 posts)(5 posts)
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Posted December 12, 2019
ReBirth 1,2,3 had recommended 64-bit Windows, 4GB RAM, and 1GB VRAM even though the games run quite alright with 32-bit (including XP) and lower specs. So considering the stated requirements always seems to be a gamble, and with the latest release of Megadimension Neptunia I called their bluff and lost. This time the game says it can run on 32-bit but this appears to be a mistake. I don't even see a 32-bit executable, it's purely 64-bit. But more importantly, the game must need some new-fangled instruction set because even with Win7 64-bit I can't run it at all. It crashes immediately with an illegal instruction.
Posted December 25, 2019
I found out that Intel Software Development Emulator takes care of instruction set requirements and allows the game to run ^__^

Now I just need to figure out WTF is up with the controls. I can't find a manual for this game, it doesn't detect my gamepad, and I can't find anything in the game's config pertaining to controls. Insanity.

I have to laugh about the thread I ran across from Steam forums regarding this game. Apparently it launched with SSE4.2 and AVX instructions compiled in. A bunch of people couldn't run it and contacted support. A concrete answer concerning the issue didn't appear for MONTHS. A patch came out which removed the AVX but kept the SSE4.2. I gotta wonder if the devs are just spamming compiler flags at random and even know what they are doing with these instructions.
Posted December 31, 2019
i had no issues with my xbox 360 controller. that is the most compatible controller however.
Posted January 19, 2020
I disassembled the main game files with CFF explorer and searched for offending instructions.

openvr_api.dll has four instances of PCMPISTRI
v2r_nosteam_en.exe has a dozen or two

That appears to be the only instruction stopping the game from running normally (without the performance-sapping emulator) on 45nm Core 2 CPUs.

For Phenom 2, there is also the matter of DPPS, PTEST, and ROUNDPS appearing a few times in v2r. And PMADDUBSW in bink2w64.dll

Would have been so much nicer if the game was properly multithreaded instead.
Posted November 26, 2021
your problem is not related to windows 7 directly. i myself can run it perfectly in windows 7. my hardware is intel core i7-2670QM and nvidia gt 630m. ram is 16 gigabytes while vram is 2 gigabytes.

i looked at the requirements for megadimension neptunia vii and it says intel i5, which is a quad core cpu. your dual core cpu is likely not compatible. hyperdimension neptunia rebirth 1, 2 and 3 however says core2duo. those will therefore run on your dual core cpu but, megadimension neptunia vii will not.
Post edited July 02, 2022 by andreasaspenberg2
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This is my favourite topic
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Hyperdimension Neptunia Seriessystem requirements woes(5 posts)(5 posts)
(5 posts)