Helldivers 2 devs slash install size from 154GB to 23GB, thanks to the help of PC port veterans — ditching HDD optimization, 85% size reduction accomplished by de-duplicating game data

Helldivers 2 game poster
(Image credit: Xbox)

It's no surprise to see modern AAA games occupying hundreds of gigabytes of storage these days, especially if you are gaming on a PC. But somehow, Arrowhead Game Studios, the developers behind the popular co-op shooter Helldivers 2, have managed to substantially cut the game’s size by 85%.

As per a recent post on Steam, this reduction was made possible with support from Nixxes Software, best known for developing high-quality PC ports of Sony’s biggest PlayStation titles. The developers were able to achieve this by de-duplicating game data, which resulted in bringing the size down from ~154GB to just ~23GB, saving a massive ~131GB of storage space.

Originally, the game’s large install size was attributed to optimization for mechanical hard drives since duplicating data is used to reduce loading times on older storage media. However, it turns out that Arrowhead’s estimates for load times on HDDs, based on industry data, were incorrect.

With their latest data measurements specific to the game, the developers have confirmed the small number of players (11% last week) using mechanical hard drives will witness mission load times increase by only a few seconds in worst cases. Additionally, the post reads, “the majority of the loading time in Helldivers 2 is due to level-generation rather than asset loading. This level generation happens in parallel with loading assets from the disk and so is the main determining factor of the loading time.”

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Kunal Khullar
News Contributor

Kunal Khullar is a contributing writer at Tom’s Hardware.  He is a long time technology journalist and reviewer specializing in PC components and peripherals, and welcomes any and every question around building a PC.

  • hotaru251
    i mean...its 2025...almost 2026 just accept that HDD for gaming is not gonna cut it. You can buy a 500GB ssd for sub $50.
    Don't be like the windows OS and drag dead weight (32bit x86) that holds you back.
    Reply
  • Gururu
    Having the option is key. I wonder if every other +100GB game has the same accommodations.
    Reply
  • gggplaya
    If you're a pc gamer in 2025, you should SSD's should be minimum spec for all AAA titles. I bought a 256GB SATA SSD for $20 years ago. You can get 256GB Sata SSD's on ebay for $15 now. I mean common, it's cheaper than most AAA titles. Even consoles are SSD only now.
    Reply
  • teeejay94
    hotaru251 said:
    i mean...its 2025...almost 2026 just accept that HDD for gaming is not gonna cut it. You can buy a 500GB ssd for sub $50.
    Don't be like the windows OS and drag dead weight (32bit x86) that holds you back.
    Just accept that you can't get 12TB for 300$ on a SSD 💯 SSDs are also garbage for long term storage.
    Reply