That Which Remains early access is officially scheduled to launch on October 27, 2026, for PC via Steam. Developed by Remaining Games and published by Interdimensional Games Inc (iDGi), the title blends ghost-hunting investigation with extraction simulation and base management. A free playable demo is already live on Steam, allowing players to test the core mechanics ahead of launch.
That Which Remains Early Access Release Date and Demo
The developers confirmed that That Which Remains enters Steam Early Access on October 27, 2026. Alongside the release date announcement on October 7, 2026, the team made a standalone demo available for public download.
Players do not need to worry about losing time spent in the pre-launch build. Remaining Games officially stated that all progress made in the free demo will carry over directly into the Early Access release.
According to the development roadmap on the Steam store page, That Which Remains is expected to remain in Early Access for roughly a full year while the main storyline is built out. However, the three-person development team noted that the timeline could be extended if player demand leads to expanded scope and features. The initial Early Access price will be the lowest price point, with plans to potentially increase the cost as major content updates and the full 1.0 version arrive.
Core Gameplay: Ghost-Hunting Meets Extraction Sim
That Which Remains is designed for solo play or 1 to 4 players via online co-op with proximity voice chat. The game puts an extraction-oriented spin on the paranormal investigation genre, drawing comparisons to titles like Phasmophobia and Lethal Company.
The Lore and Setting
Set around 2250 C.E., human civilization has supposedly eliminated war, scarcity, and death to create a future utopia. However, this society secretly runs on "Enticine"—liquefied human trauma harvested from Neurospatial Parasitic Entities (ghosts). Because the utopian future no longer generates sufficient trauma, an organization named Entitech conscripts "Relics"—individuals pulled from historical eras of suffering—to venture into past contamination zones and extract the necessary fuel.
Investigation and Extraction Mechanics
Each excursion sends players across space and time into contaminated locations. The core loop consists of several distinct phases:
- Investigate: Search environments for physical and paranormal signals. Players track EMF spikes, dramatic temperature drops or spikes, ghost orbs visible through camera lenses, illusions, telekinetic phenomena, and spirit box responses.
- V.O.I.C.E. Communication: Players can speak into the Spirit Box using voice recognition technology to ask questions and receive replies from entities, their past victims, or deceased teammates.
- Identify: Map primary and secondary evidence to identify the entity from 12 to 13 distinct types, each possessing unique moods, behaviors, and reactions to player actions.
- Capture and Meet Quota: Once identified, players deploy traps or capture tools to extract Enticine directly from the entity or salvage trauma-laced materials.
- The 24-Hour Quota: Relics must meet a rising daily Enticine quota. Surplus Enticine powers your base; failing to provide enough energy risks running out of base power entirely.
Hazards escalate quickly during excursions. Entities can shatter glass, throw objects, possess players, disable lights, wield elements like fire and electricity, and violently manifest to drain sanity. Excursion difficulty and rewards dynamically scale with the game's 24-hour day/night cycle and changing weather conditions.
Base Upgrades and Sanity Management
Between excursions, players return to a persistent base hub designed without post-launch loading screens. Survival depends heavily on the sanity stat, which aggregates fatigue, fear, and cognitive strain into a single persistent meter.
To recover sanity and prepare for future missions, players can:
- Rest in private cabins, which retain custom player decorations across sessions.
- Drink coffee, shoot hoops on an indoor basketball court, or play chess.
- Build and step into base facilities like the serenity chamber.
- Spend earned Energy Credits at the recycling and crafting stations to create utility gear.
- Invest surplus Base Power into up to 10 distinct base upgrades to unlock new equipment and personal perks upon leveling up.
Early Access Content vs. Full Release Plans
Remaining Games outlined what is ready at the start of Early Access compared to what will be developed during the testing phase.
| Category | Early Access Launch Build | Planned for Full Release |
|---|---|---|
| Playable Maps | 5 contamination zones (4 non-contextualized maps from houses to an arctic prison, plus 1 blueprint map) | Additional historic zones, contextualized art design, and varied eras |
| Entities | 12 to 13 entity types with unique behaviors | Expanded entity roster with distinct parasite personalities |
| Equipment | ~18 investigation and capture tools | Additional gadgets, capture technology, and survival gear |
| Progression & Base | 10 base upgrades, crafting system, daily quota | Expanded perk trees, automation options, and character customization |
| Story & Audio | Functional local voice chat, V.O.I.C.E. tech, basic lore | Fully fleshed-out main campaign, extensive Entitech voice acting, and victim dialogues |
PC System Requirements
The developers have published official hardware requirements targeting 1080p performance on modern 64-bit Windows systems.
| Hardware Component | Minimum Requirement (1080p / 30 FPS, Low) | Recommended Requirement (1080p / 60 FPS, Med-High) |
|---|---|---|
| Operating System | Windows 10 / 11 (64-bit) | Windows 10 / 11 (64-bit) |
| Processor | Intel Core i5-8400 or AMD Ryzen 3 3100 | Intel Core i5-10400 or AMD Ryzen 5 3600 |
| Memory | 8 GB RAM | 8 GB RAM |
| Graphics Card | NVIDIA GeForce GTX 1070 or AMD Radeon RX 5600 | NVIDIA GeForce RTX 3060 or AMD Radeon RX 6600 |
| DirectX | Version 12 | Version 12 |
| Storage | 10 GB available space | 10 GB available space |
| Network | Broadband internet connection | Broadband internet connection |
Frequently Asked Questions
When does That Which Remains launch in Early Access?
That Which Remains launches into Steam Early Access on October 27, 2026.
Does progress from the free demo transfer to Early Access?
Yes. Remaining Games has confirmed that all save progress earned in the free demo will carry over directly to the Early Access version upon release.
Can That Which Remains be played solo?
Yes. The game fully supports single-player play as well as 1 to 4 player online cooperative multiplayer.
How many entity types are in the game?
The Early Access build includes 12 to 13 fully realized entity types, each featuring distinct behavioral traits, environmental interactions, and evidentiary clues. More entities are planned throughout development.
