Kaidan vs Rules of Engagement: The Grey State

• Perspective: Third-Person
• Multiplayer: 3-Player Online Co-op (Drop-in/Drop-out)
• Setting: Japanese Folklore / Cosmic Horror
• Platforms: PC (Steam)
• Release Window: TBA
• Unique Feature: A unique blend of Soulslike melee combat with a tense, replayable 'extraction-lite' gameplay loop set in a Japanese cosmic horror world.

• Perspective: First-Person
• Multiplayer: Online Co-op & PvP (1-4 Player Squads)
• Setting: The 'Horrorverse' / The Grey State
• Platforms: PC (Future console release TBD)
• Release Window: 2026
• Unique Feature: A unique blend of a tactical extraction shooter with a deep, permanent, Path of Exile-inspired RPG skill tree, set in a Lovecraftian horror universe.

• Co-op Teammates: In the game's 3-player co-op mode, other players act as your companions. Team play is encouraged through unique synergies, allowing players to specialize in roles like tank, healer/debuffer, or DPS.
  Human (Player)

• Relics: Powerful artifacts that must be successfully extracted from Ikaiguchi. They are the primary items used to unlock new combat moves and powerful character upgrades.
• Lore Items: Found through exploration. The story unfolds through item descriptions and environmental storytelling rather than traditional cutscenes.

• Alien Artifacts: The primary objective item in The Grey State. Successfully extracting these is the main goal of any run.
• Resources: Scavenged from the environment and smaller monsters, these are used for in-match crafting and progression.
• Gear (In-Match): Better weapons and armor looted during an expedition. This gear is lost on death.

• Japanese Folklore
• Cosmic Horror
• Soulslike
• Extraction
• Dark Fantasy
• Survival
• Mythology

• Tactical Shooter
• Extraction
• Horror
• Cosmic Horror
• PvPvE
• Action RPG
• Sci-Fi

• Katanas: Melee
  A balanced and iconic melee weapon, likely offering a mix of speed and precision.
• Polearms: Melee
  Long-reaching weapons like spears or naginatas, excellent for controlling space and keeping enemies at a distance.
• Axes: Melee
  Heavy, high-damage weapons designed to break through the guards of formidable Yokai.

• Firearms: Varies (Shotguns, Rifles, etc.)
  A mix of realistic and experimental firearms used for fast-paced, tactical combat. The Sledge class, for example, can unlock talents for a shotgun and a recoilless rifle.
• Flamethrower: Heavy Weapon
  The signature weapon of the Pyro class, used to incinerate enemies and control areas.
• Melee Weapons: Varies (Sledgehammer, etc.)
  Close-quarters weapons, such as the Sledge's sledgehammer, used for brutal takedowns.

• Armor Sets: Players can customize their Seeker with different armor sets and masks. In addition to providing defensive stats, these cosmetics can also influence gameplay and narrative by affecting how certain NPCs or Yokai interact with the player.

• Customizable Armor & Masks: Players can customize their Seeker's appearance with various armor sets, masks, and style sets. These are not just cosmetic, as they can also grant strengths, weaknesses, and passive bonuses that affect gameplay.

Progression is player-driven and tied to successful extractions. Players use gathered resources like blood, essence, and memory fragments to unlock permanent buffs and upgrade gear at a central hub. A 'Sigil' system acts as a skill tree, allowing players to unlock new combat moves and passive abilities. Weapons and gear can be crafted, upgraded, and enchanted.

The game features a deep, permanent RPG progression system with no forced wipes. Players choose from four classes (Sledge, Pyro, Phantom, and one unrevealed) and customize them via an extensive, Path of Exile-inspired skill tree with over 100 talents. These talents are mechanics-based (e.g., faster looting, new weapon options like a shotgun for Sledge) rather than raw stat increases, ensuring a level playing field. Progression is persistent, but all players spawn into a match with a basic, blank-slate loadout.

The game features a large, interconnected world with multiple biomes, but is explored through mission-based 'incursions' or 'runs'. Each zone is a haunted, procedurally arranged area with its own unique Yokai, minibosses, and a final Chordbearer target. The world state can mutate between runs based on player actions.

The game features multiple, large-scale maps. Gameplay is session-based, with a limited time for each incursion. The environment is dynamic and reactive, with shifting weather, unstable geometry, and hazards. The world is populated by AI factions and hostile creatures, creating a dense PvPvE experience.

• The Seeker: Playable Protagonist
  A lost soul resurrected by the Envoy, forced to fulfill a dark pact. The player's identity is intentionally vague, with progression and customization defining the character.
• The Envoy: Key NPC / Quest Giver
  A cryptic, mystical entity who holds power over the Seeker due to their pact. The Envoy guides the player and is central to the game's 'deal with the devil' allegory.
• The Chordbearers: Bosses
  The primary antagonists and main targets of the extraction missions. These are powerful, unique beings that anchor the corruption in each region of Ikaiguchi.

• Sledge: Playable Class (Heavy Assault)
  The 'juggernaut' class. Specializes in frontline combat, using a shield to block damage and talents for shotguns and recoilless rifles.
• Pyro: Playable Class (Battlefield Control)
  A 'chaotic madman' class. Uses a flamethrower, gas grenades, and incendiary bombs to control the battlefield.
• Phantom: Playable Class (Assassin)
  A 'swift assassin' class. Focuses on stealth, flanking, and executing 'flawless' one-shot backstabs and chain kills.
• The Hunger: Enemies
  The grotesque, infected abominations that serve as the primary PvE threat.

• Expeditions
  The main gameplay loop. Players deploy to a map (solo or in a squad) with a limited amount of time. The mission is divided into two phases: a PvE-focused gear-up phase, and a high-conflict second phase where players can opt for a safe, early extraction or fight for the high-value 'Vertex' prize.

The game is a persistent online PvPvE extraction shooter. Players can queue for 'Expeditions' solo or in squads of up to four. The core loop is divided into two phases: a resource-gathering first phase and a high-conflict second phase where players can choose an early, safe extraction or fight for the final, high-value 'Vertex' prize at the main helicopter extraction.

• Q: What is Kaidan?
  A: Kaidan is an upcoming third-person melee action game that blends the challenging combat of Soulslikes with the high-stakes loop of extraction games, all set in a dark fantasy world inspired by Japanese folklore and cosmic horror.
• Q: Is it a multiplayer game?
  A: It is primarily a single-player experience but supports seamless drop-in/drop-out online co-op for up to three players.
• Q: What does 'Extraction-Lite' mean?
  A: It means the core gameplay loop involves entering a dangerous, procedurally-arranged zone, gathering resources and completing objectives, and then successfully escaping (extracting) to keep your loot. Failure can result in losing progress and items from that run.
• Q: When will it be released?
  A: As of August 2025, there is no official release date for Kaidan. A playable demo has recently been shown at events like Gamescom 2025.

• Q: What is Rules of Engagement: The Grey State?
  A: It is a free-to-play, first-person tactical extraction shooter with deep, permanent RPG progression. Players, as 'Striders,' enter a surreal horror dimension to fight monsters and other players for valuable artifacts.
• Q: Is it 'pay-to-win'?
  A: No. The developers have confirmed the game is not pay-to-win. All players spawn into a match with a basic loadout, and all monetization is cosmetic-only.
• Q: How does progression work if everyone starts with the same gear?
  A: Progression is persistent and tied to a deep, Path of Exile-inspired skill tree. You don't bring in better gear, you bring in better *talents* and *abilities* that you have permanently unlocked, which define your playstyle (e.g., stealth, farming, or combat).
• Q: What is the 'Horrorverse'?
  A: It's the game's setting concept. 'The Grey State' is a dimension that acts as a 'graveyard of nightmares,' allowing the developers to pull in monsters from diverse sources, such as Lovecraftian lore, creepypastas, and global folklore (like from the upcoming Hong Kong map).

• SPECULATIVE PC SYSTEM REQUIREMENTS. As official specs were not provided, these are hypothetical projections for a next-generation title built on Unreal Engine 5.
• Laptop Performance Note: A title like this would demand a high-performance gaming laptop. Actual performance would vary significantly based on the final game's optimization and the laptop's specific hardware configuration.
• Laptop Consideration: G P U T G P: Maximum TGP for the laptop's GPU would be essential to handle the advanced graphical features, eerie lighting, and heavy particle effects.
• Laptop Consideration: Cooling Thermals: The game's intense, visually demanding boss fights will require a laptop with a cutting-edge cooling solution to prevent thermal throttling.
• Laptop Consideration: C P U Power Limits: A powerful multi-core mobile CPU will be critical for handling the complex AI of the Yokai and physics-based combat.
• Laptop Consideration: M U X Switch Optimus: A MUX switch or NVIDIA Advanced Optimus would be a critical feature for reducing latency and ensuring the best possible performance in the timing-based melee combat.
• Game Name: Kaidan

• OFFICIAL PC SYSTEM REQUIREMENTS from the game's Steam page. These specifications reflect the demands of a modern Unreal Engine 5 title.
• Laptop Performance Note: Laptop performance will vary based on the model's cooling and TGP. As a fast-paced shooter, maintaining a high and stable framerate is crucial.
• Laptop Consideration: G P U T G P: Maximum TGP for the laptop's GPU is essential to handle the advanced graphical features, ray tracing, and maintain high framerates.
• Laptop Consideration: Cooling Thermals: The game's visually rich world and intense combat will require a laptop with a cutting-edge cooling solution to prevent thermal throttling.
• Laptop Consideration: C P U Power Limits: A powerful multi-core mobile CPU will be critical for handling the complex AI of both monsters and human enemies, as well as the physics-based interactions.
• Laptop Consideration: M U X Switch Optimus: A MUX switch or NVIDIA Advanced Optimus is a critical feature for reducing latency and ensuring the best possible performance in a competitive FPS.
• Game Name: Rules of Engagement: The Grey State

• G P U T G P: Maximum TGP for the laptop's GPU would be essential to handle the advanced graphical features, eerie lighting, and heavy particle effects.
• Cooling Thermals: The game's intense, visually demanding boss fights will require a laptop with a cutting-edge cooling solution to prevent thermal throttling.
• C P U Power Limits: A powerful multi-core mobile CPU will be critical for handling the complex AI of the Yokai and physics-based combat.
• M U X Switch Optimus: A MUX switch or NVIDIA Advanced Optimus would be a critical feature for reducing latency and ensuring the best possible performance in the timing-based melee combat.

• G P U T G P: Maximum TGP for the laptop's GPU is essential to handle the advanced graphical features, ray tracing, and maintain high framerates.
• Cooling Thermals: The game's visually rich world and intense combat will require a laptop with a cutting-edge cooling solution to prevent thermal throttling.
• C P U Power Limits: A powerful multi-core mobile CPU will be critical for handling the complex AI of both monsters and human enemies, as well as the physics-based interactions.
• M U X Switch Optimus: A MUX switch or NVIDIA Advanced Optimus is a critical feature for reducing latency and ensuring the best possible performance in a competitive FPS.