# PlayCompat (playcompat.com)

> Deterministic Multiplayer Crossplay & Party Compatibility Decision Engine.
> Instant platform intersection solving for mixed hardware gaming squads (PC, Steam, Epic Games, PC Game Pass, PlayStation 5, Xbox Series X|S, Nintendo Switch).

## Core Capabilities & Truth Layer

PlayCompat solves the multiplayer coordination problem for groups of friends playing on different gaming devices. Unlike generic "is this crossplay" articles, PlayCompat enforces storefront-level and mode-level hard constraints:

1. **Storefront-Level Differentiation**: Disambiguates between Steam, PC Game Pass, and Epic Games Store. For example, *Deep Rock Galactic* supports crossplay between Xbox and PC Game Pass, but isolates Steam lobbies completely.
2. **Mode-Level Platform Truth**: Explicitly isolates PvP from PvE. Games like *Warhammer 40,000: Space Marine 2* and *Overwatch 2* allow crossplay across all platforms in cooperative Operations, but enforce console-only or separate matchmaking pools in competitive PvP.
3. **Setup Caveats & Friction Alerts**: Highlights mandatory account bindings (e.g., Epic Games Account for *Remnant 2*, Microsoft Account for *Sea of Thieves* on PS5), dedicated server hosting requirements, and session join codes.
4. **Party Size Cap Verification**: Validates exact squad limits. For example, *Remnant 2* and *Space Marine 2* cap at 3 players, while *Helldivers 2* supports 4 players.
5. **4D Asset Portability Graph**: Tracks whether campaign saves, character levels, premium currencies, and DLC licenses transfer across systems.

## Key Hubs & Decision Engines

- [Home & Real-Time Party Solver](https://playcompat.com/): Real-time interactive multi-platform squad solver.
- [Couples & 2-Player Co-op Matcher](https://playcompat.com/couples/): Curated duo co-op games with Friend's Pass, couch co-op, and low-stress settings.
- [PC Game Pass to Steam Hub](https://playcompat.com/gamepass/): Verified storefront compatibility table for Microsoft PC Game Pass and Steam.
- [Cross-Progression & Cloud Saves Hub](https://playcompat.com/cross-progression/): 4D asset portability tracker for 100+ titles.
- [Multiplayer Guides & Troubleshooting](https://playcompat.com/guides/): Engineering-grade network setup and troubleshooting guides.
- [Sitemap](https://playcompat.com/sitemap.xml): Complete machine-readable XML sitemap.
- [Full Ground Truth Database](https://playcompat.com/llms-full.txt): Complete machine-readable markdown encyclopedia of all 102 verified games.

## Flagship Multiplayer Guides

- [Best Co-Op Games Like It Takes Two with Crossplay](https://playcompat.com/guides/games-like-it-takes-two-with-crossplay/): 7 verified crossplay duo games sharing Hazelight's asymmetric puzzle DNA.
- [PC Game Pass to Steam Troubleshooting & Lobby Fixes](https://playcompat.com/guides/pc-game-pass-steam-troubleshooting/): 5-step diagnostic blueprint for Xbox Game Bar, NAT/Teredo, and dedicated server connections.
- [Cross-Progression Explained: Saves, DLCs & Wallet Sync](https://playcompat.com/guides/cross-progression-cloud-saves-dlc-guide/): 4-dimensional asset portability rules and irreversible account linking warnings.
- [Minecraft Crossplay: Bedrock vs Java Edition](https://playcompat.com/guides/minecraft-crossplay-bedrock-vs-java/): Compatibility differences between Bedrock and Java ecosystems.

## Popular Squad Intersections

- [Steam + PS5 + Xbox Trio Co-op](https://playcompat.com/play/ps5-steam-xbox/3/coop/): Top verified cooperative titles playable across all 3 primary platforms for 3 players.
- [Steam + PS5 + Xbox 4-Player Co-op](https://playcompat.com/play/ps5-steam-xbox/4/coop/): 4-player crossplay squad titles.
- [PC Game Pass + Xbox 4-Player Co-op](https://playcompat.com/play/pcgp-xbox/4/coop/): Titles playable across Microsoft ecosystem.
- [Steam + PS5 2-Player Co-op](https://playcompat.com/play/ps5-steam/2/coop/): Duo co-op games connecting PlayStation 5 and Steam PC.