Once Human PC Hardware Guide
Official requirements explained
The official minimum asks for an Intel Core i5-4460 or Snapdragon X class processor, an Nvidia GTX 750 Ti 4G, AMD Radeon RX 550 or Qualcomm Adreno X1 class graphics, 8 GB of RAM, 100 GB of storage, and an SSD. In our tier ranking, the i5-4460 is a very old entry-level CPU and the GTX 750 Ti and RX 550 are entry-level graphics cards. This level is a bare-minimum baseline that gets the game running, not a target for a smooth experience.
The recommended tier asks for an Intel Core i7-7700 or Snapdragon X2 Elite, an Nvidia GTX 1060 6G, AMD Radeon RX 580, Intel Arc A380 or Qualcomm Adreno X2, 16 GB of RAM, and the same 100 GB SSD requirement. The i7-7700 is roughly an older mainstream quad-core, the GTX 1060 6G and RX 580 were mainstream cards a few generations back, and the Arc A380 sits in the older entry band. The gap between minimum and recommended is clear, and most of it is in the processor and memory.
Because this game leans on the CPU, the processor and 16 GB of RAM matter more than the GPU gap suggests. A graphics card that meets the recommended tier paired with a CPU that only just meets the minimum can still hit a wall in large late-game scenes. The publisher did not list any tier above the recommended one, so we cannot confirm requirements beyond that.
Recommended builds for three budgets
The entry build suits players on a tight budget who mainly want the game running. Pair an AMD Radeon RX 6500 XT, Intel Arc A380 or NVIDIA GeForce GTX 1650 with a quad-core such as the Ryzen 3 3100 or Core i3-10100F, and use 16 GB of RAM. It clears the recommended tier and lets you play stably at lower settings, but expect to dial things back when many units appear on screen.
The mainstream build is the choice most players should look at first. A GTX 1660, RTX 3050 or GTX 1660 Super gives the GPU side room, and a six-core like the Ryzen 5 3600 or Core i5-10400 handles the CPU load better. Again, 16 GB of RAM is the right starting point. This tier has a comfortable margin above the recommended requirements and suits players who want medium settings across large maps and crowded multiplayer scenes.
The high-end build is for players who want higher settings and more CPU headroom. Options include an RTX 2070 Super, RTX 4060, RX 7600 or Arc B580, paired with a Ryzen 5 5600X, Ryzen 7 5800X or Ryzen 5 7600. Consider 32 GB of RAM if you run other programs alongside the game or play for long sessions. Since this title is sensitive to the processor, putting extra budget into the CPU often pays off more than pushing the graphics card as far as it goes.
Graphics settings with the biggest impact
In large multiplayer survival games like this, the settings that usually cost the most are shadows, volumetric lighting and other heavy lighting effects, view distance, and the density of crowds, units and simulation. Some of these look only slightly different on screen but add a lot of load. If your bottleneck is the CPU, lower unit draw distance, crowd density and simulation detail first. That usually helps more than dropping texture resolution.
Shadows and volumetric effects are among the biggest GPU costs. Dropping them to medium rarely makes a visible difference in everyday play. If the game offers ray tracing, we would leave it off on entry and mainstream builds so the GPU budget goes to a steady frame pace. Textures and materials use a lot of video memory, so on a card with 4 GB or 6 GB, lowering texture quality is often the cleanest way to avoid stutter.
Upscaling technologies such as DLSS, FSR and XeSS render at a lower internal resolution and scale the image up, giving you more performance headroom with some change in fine detail. Which one you can use depends on your graphics card brand and model. Start with a quality preset and adjust from there.
Laptops and handheld PCs
A laptop GPU often shares a name with a desktop card, such as an RTX 3060 laptop version, but its power limit and cooling are usually more conservative, so real performance tends to fall below the desktop equivalent. When you evaluate a laptop, check the GPU's power limit (TGP) and the chassis cooling rather than relying on the model name alone. Laptop CPUs can also throttle under sustained load when power limits kick in.
Handheld PCs such as the Steam Deck or ROG Ally are full computers with integrated or low-power processors and graphics. They can run many games, but the official requirements for a PC game do not map neatly onto handheld hardware. We have no handheld verification data for this title, so this is general guidance only: use lower settings, enable the device's upscaling options, and set power and fan modes to a balanced profile to limit heat-related slowdowns.
If you plan to play on a laptop or handheld, first confirm that its memory and storage meet the official requirements, and make sure it has adequate cooling and a proper power supply.
Storage and memory
The recommended memory is 16 GB, with 8 GB as the stated minimum. In practice 16 GB is the more realistic starting point, since 8 GB can run into shortages in late-game scenes, causing visible stutter and loading delays. If you keep a browser, voice chat or streaming software open alongside the game, 32 GB gives you a more comfortable margin. Use dual-channel memory, meaning two or four matched sticks, to give the CPU more bandwidth. That helps noticeably in CPU-heavy games like this one.
The official requirement is an SSD with 100 GB of space. An SSD greatly shortens map transitions and loading times and reduces the hitches that come from streaming data while you play. An HDD can technically work, but the experience will be noticeably worse, so we would not recommend it.
Leave more than the 100 GB minimum free, since game updates and cache files tend to grow over time. If you can, put the game on an SSD separate from your operating system drive, or at least keep a good amount of free space so both the system and the game run smoothly.