Deck of Haunts has modest published minimum requirements and is officially Steam Deck Verified. On Windows, Steam lists a 2.3 GHz processor, 8 GB of RAM, 3 GB of VRAM, Windows 10 and 2 GB of available storage. Steam also lists full controller support, Steam Cloud, Steam Workshop and a level editor. The Verified label confirms that the game passed Steam’s compatibility checks, but it does not promise a particular frame rate, battery life or graphics preset on every Steam Deck model.
What kind of game is Deck of Haunts?
Deck of Haunts is a single-player indie simulation and strategy game from developer Mantis, published by DANGEN Entertainment and Game Source Entertainment. Its premise reverses the usual haunted-house story: you play the house itself, building a mansion designed to frighten its visitors.
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The central loop combines construction, card-based haunting and resource management. You place special rooms, use haunt cards to manipulate visitors’ fears and push them toward insanity. Their extracted essence then unlocks additional rooms and powers, allowing the mansion to grow more dangerous. That structure makes the game a management title as much as a horror game; success depends on deciding how to arrange the house and when to spend your available abilities.
The Steam release date was May 7, 2025. SteamDB records the release event at 13:00:14 UTC on that date. Steam lists single-player play, Steam Workshop support and a level editor, so the experience is not limited to the campaign content supplied at launch.
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- International (UK) Version
- 7.4” diagonal, HDR OLED, 1280 x 800 x RGB, up to 90Hz Refresh rate, High performance touch, <0.1 ms Response time, 1,000 nits peak brightness (HDR), 600 nits (SDR)
- SteamOS 3.0 (Arch-based)
- 512GB NVMe SSD, 16GB LPDDR5 on-board RAM (5500 MT/s quad 32-bit channels), microSD UHS-I supports SD, SDXC and SDHC
- 6 nm AMD APU, CPU: Zen 2 4c/8t, 2.4-3.5GHz (up to 448 GFlops FP32
Deck of Haunts minimum system requirements for Windows
Steam publishes the following minimum PC target. These figures are minimums, not recommended specifications or a guarantee of a particular visual quality.
| Component | Published minimum | How to interpret it |
|---|---|---|
| Operating system | Windows 10 | Windows 10 is the stated minimum operating system. |
| Processor | 2.3 GHz | Steam gives a minimum clock speed but does not identify a required processor model or core count. |
| Memory | 8 GB RAM | This is system memory, separate from graphics memory. |
| Graphics memory | 3 GB VRAM | This is dedicated video memory on the published PC target; Steam does not name a minimum GPU model. |
| Storage | 2 GB available space | You need at least 2 GB free for the installation according to the store listing. |
Because the listing does not name a specific graphics card, processor family or recommended tier, the table should be used as a baseline check rather than a performance forecast. A computer that barely meets a minimum can behave differently from one with additional headroom, particularly when other programs are running. The published numbers also do not state a target resolution, quality preset, frame-rate cap or recommended hardware.
Is Deck of Haunts Steam Deck Verified?
Yes. Steam marks Deck of Haunts as Verified, the strongest Steam Deck compatibility status shown by the storefront. The same listing reports full controller support, including Xbox and PlayStation controllers.
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Verified is useful for answering the basic compatibility question: the title has passed Valve’s storefront checks for Steam Deck use. It is not a benchmark. Steam’s listing does not publish a guaranteed frame rate, battery-life estimate, graphics preset, temperature target or separate result for each Steam Deck model. Those figures can vary with the system’s power profile, display settings, game updates and the model you own.
The practical conclusion is straightforward: Deck of Haunts is an appropriate Steam Deck purchase for players who want a supported handheld experience, but you should not treat the Verified badge as a promise of a fixed number of frames per second.
How the PC requirements relate to Steam Deck
The Windows requirements and the Steam Deck badge answer different questions. The requirement list describes a minimum Windows configuration: Windows 10, a 2.3 GHz processor, 8 GB of RAM, 3 GB of VRAM and 2 GB of free storage. Steam Deck compatibility is a separate storefront assessment that covers how the game behaves with the handheld’s operating system and controls.
Do not read the 3 GB VRAM line as a direct statement about a Steam Deck’s graphics-memory layout. Steam publishes that number for the PC requirement, while the Deck listing supplies the Verified result. The available information does not provide a model-by-model conversion, an equivalent desktop GPU, or a performance comparison between a Windows computer and a Steam Deck.
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Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →| Question | What the published information establishes |
|---|---|
| Will it install and launch on Steam Deck? | Steam lists the game as Verified. |
| Are handheld controls supported? | Steam lists full controller support, plus Xbox and PlayStation controller support. |
| How much Windows RAM is required? | 8 GB minimum. |
| How much Windows graphics memory is required? | 3 GB VRAM minimum. |
| How much storage is listed? | 2 GB available space minimum. |
| What frame rate or battery life should you expect? | Steam does not publish a model-specific guarantee. |
Controls and accessibility options
Steam documents a broader set of options than the compatibility badge alone suggests. The listing includes:
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- Operating System: SteamOS 3.0
- Full controller support.
- Xbox and PlayStation controller support.
- Adjustable difficulty.
- Adjustable text size.
- Subtitle options.
- Camera-comfort settings.
- Custom volume controls.
- An option to play without quick-time events.
- A mouse-only option.
These choices matter on both a desktop and a handheld. A player who prefers a larger interface can adjust text size; someone sensitive to camera movement can use the camera-comfort controls; and the mouse-only option provides an alternative input method when a controller is not preferred. The store listing confirms that these options exist, but it does not describe every individual setting’s range or how each behaves on a particular Deck model.
What to check before installing on a Windows PC
Use the minimum table as a quick pre-purchase check. Verify each item rather than looking only at the processor name.
- Confirm the operating system. The published minimum is Windows 10.
- Check processor speed. Steam specifies 2.3 GHz, but it does not state a required model or core count. If your system utility reports a base or nominal clock below that figure, it does not clearly meet the published minimum.
- Check installed RAM. The minimum is 8 GB of system memory. Leave room for Windows and background applications instead of assuming every installed gigabyte is available to the game.
- Check dedicated graphics memory. The listing calls for 3 GB of VRAM. Integrated graphics may report memory differently, so compare your hardware’s reported graphics-memory configuration with the store requirement rather than guessing from total system RAM.
- Free storage before installation. Steam lists 2 GB available space. Keeping additional free space can make updates and Workshop content easier to manage, but the published installation minimum is 2 GB.
If your computer falls short on one item, the store page does not provide an alternative low-spec profile. In that situation, a Steam Deck with the Verified status may be the clearer supported path than trying to infer results from an under-spec Windows machine.
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The basic installation process uses Steam’s normal handheld interface:
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- 【Upgraded】We sells product with professionally upgraded to 2TB SSD. Original Seal is opened for upgrade ONLY.
- 【Stunning 7.4" HDR OLED & 90Hz Motion】 Experience striking contrast and brilliant clarity with the all-new 7.4-inch HDR OLED display. Designed from the ground up for gaming, it features a 90Hz refresh rate for smooth motion and pure blacks. This handheld is capable of delivering an immersive visual experience, ensuring your Steam library looks better than ever with vibrant colors and amazing motion rendition.
- 【30-50% More Battery & Efficient Performance】 Play your favorites longer with up to 50% more battery life. By fitting a larger battery and a power-efficient OLED panel, this device provides extended gameplay sessions. It’s the perfect travel companion for long flights or commutes. The updated AMD APU ensures high-speed performance for AAA titles while maintaining incredible energy efficiency.
- 【3X Faster Downloads with Wi-Fi 6E】 Never wait for a game again. Equipped with Wi-Fi 6E, this Steam Deck OLED offers increased bandwidth and lower latency, delivering downloads up to 3 times faster than previous models. This ensures stable online play and rapid updates, making it the most reliable wireless gaming handheld for modern high-speed home networks.
- 【Responsive Touch & Enhanced Connectivity】 Enjoy a vastly improved touchscreen with higher fidelity and faster haptics. We’ve added a dedicated Bluetooth antenna to improve connections for multiple controllers. Whether using the built-in trackpads or the included external controller, this allows for precision play in everything from FPS to complex strategy games.
- Open Library on the Steam Deck and search for Deck of Haunts.
- Open the game’s store or library page and choose Install.
- Select the storage location with at least the listed 2 GB available.
- After installation, start the game from the library and connect or pair a controller if you are using an external one.
- Open the game’s options before beginning a long session. Set text size, subtitles, camera comfort, volume, difficulty and quick-time-event behavior to your preference.
Steam Cloud is listed for the game, which can help keep supported saves synchronized between Steam installations. Workshop support and the level editor provide additional ways to use community or self-created content; availability and behavior of individual Workshop items can depend on the game’s current version.
What performance information is—and is not—available
Readers often want a single answer such as “How many FPS does Deck of Haunts get?” The published material does not support one. Steam’s Verified label does not include an FPS figure, and no official listing supplies battery-life measurements or graphics presets for each Steam Deck model.
That means any exact FPS or battery claim would depend on a test setup and should not be presented as an official expectation. Your results can change with screen brightness, frame-rate limits, operating-system updates, background downloads, Workshop content and the particular Deck hardware revision. The defensible conclusion is that the game is storefront-verified and controller-ready, while quantitative performance remains unspecified by the primary listing.
Release, developer and support information
Deck of Haunts launched on Steam on May 7, 2025. Steam identifies Mantis as the developer and DANGEN Entertainment and Game Source Entertainment as the publishers. SteamDB records the precise release event as May 7, 2025 at 13:00:14 UTC.
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- Valve is entering the gaming console marketplace with the new Steam Deck, a console geared towards PC gamers. The Steam Deck can be docked to a monitor, and used as a PC, or docked to a TV.
- Players can play a huge variety of games at any time with the comfort of a console and the freedom of a PC. Not anti-glare screen.
- Like the name suggests, the Steam Deck will include upgraded 1TB storage, and will include a carrying case. A micro SD slot will also enable expanded storage.
- Valve partnered with AMD to create a specialized APU optimized for handheld gaming, and Valve says the chip will deliver performance to run AAA gaming titles.
- The Steam Deck is outfitted with a 7-inch touchscreen, and two trackpads under the control sticks that allow gamers to operate games never designed outside of mouse and keyboard capabilities.
For patches, announcements and troubleshooting notices, use the game’s Steam Community announcements page. It contains developer updates, update notes and guidance for reporting bugs or crashes. Checking those notices is especially useful after an update if a previously working controller, save or Workshop item behaves differently.
Common problems and sensible next steps
The game does not appear to meet your Windows hardware target
Recheck RAM, VRAM, processor speed and free storage individually. The 8 GB RAM and 3 GB VRAM figures are separate requirements. If one is below the published minimum, Steam does not provide a documented substitute configuration, so avoid treating a successful launch as proof of reliable performance.
You are unsure whether a controller will work
Steam lists full controller support and specifically names Xbox and PlayStation controllers. On the Deck itself, begin with the built-in controls; for an external pad, connect it before launching and confirm the active layout in Steam’s controller settings.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsYou encounter a crash or an update-related problem
Restart Steam, confirm that the game is fully updated and check the current Steam Community announcements for a known issue. If the problem persists, follow the developer’s reporting guidance there and include the Deck model or Windows hardware, operating-system version, game version and the steps that reproduce the problem.
Text, camera movement or timed actions are uncomfortable
Use the documented accessibility controls: increase text size, enable subtitles, adjust camera comfort, change volume controls or disable quick-time events. If you prefer a traditional pointer interface, Steam also lists a mouse-only option.
Should you choose the Windows version or Steam Deck?
Choose based on the information that is actually established:
- Choose Steam Deck if you want a handheld with an official Verified storefront status, full controller support and documented accessibility options. The badge is the clearest compatibility signal available for portable play.
- Choose Windows if you already have a system that meets the published minimums and want to use a traditional desktop setup. Confirm Windows 10, 2.3 GHz processing, 8 GB RAM, 3 GB VRAM and 2 GB free storage first.
- Wait for hands-on testing if your decision depends on a specific FPS target, battery-life figure or graphics preset. Those model-specific measurements are not supplied by Steam’s listing.
For either platform, the game offers single-player play, adjustable difficulty, subtitles, text-size controls, camera-comfort options and custom audio controls. Steam Cloud can help carry supported saves between Steam installations, while Workshop and the level editor add user-created content to the core mansion-building loop.
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