Pylon vs. Playroom Kit

Playroom Kit nails "ship a multiplayer party game in an afternoon" with a host-relay model. Pylon is for when host-relay isn't enough — server authority, persistent player data, and self-host without per-CCU billing.

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TL;DR

Pick the one that fits your shape

Choose Playroom Kitif

You're shipping a casual web game this week, room sizes stay under ~20 players, you don't want any backend to operate, and you accept managed-only deployment.

Choose Pylonif

You want server authority (anti-cheat, validation), persistent player data (profiles, progression, inventory), more than ~20 concurrent players per room, or to own your backend.

Architecture

Where the two diverge

	Pylon	Playroom Kit
License	MIT OR Apache-2.0	Proprietary
Self-host	Yes — any Linux box	No — managed only
Authority model	Server-authoritative tick loop	Host-relay (one client is "host")
Persistent player data	Entities + auth	Key-value, in-memory by default
Built-in auth	Yes — magic codes / OAuth	Guest by default
File storage	Yes	No
Search	Yes	No
Max concurrent / room	High (server-bound)	Modest (host-phone-bound)

Same shape

What both ship

Either one is a real choice for a quick-to-ship multiplayer surface. The differences below are about emphasis and operational shape, not feature presence.

Room-based multiplayer over WebSocket
Room codes for join flow
Real-time state broadcast to clients
Cross-platform web + mobile
Designed for quick iteration

Where Pylon wins

What you get with Pylon you don't with Playroom Kit

Server authority — players can't cheat

All state lives on the server, all logic runs there. Critical for competitive games or anything with persistent rewards. Playroom's host-relay model means whoever is "host" can theoretically manipulate state.

Real player accounts, not per-room guests

Stable identity. Inventory, progress, friends, leaderboards, cosmetics — all first-class entities. Playroom's persistent state is key-value and per-room by default.

Higher player count per room

Server tick loop scales beyond what one phone can simulate. Playroom hits a practical ceiling around 20 concurrent players (host-bound).

You own the backend

Open source, self-hostable. No vendor outage takes down your game. No per-CCU pricing as you grow — pay a flat VPS bill.

Backend logic — anti-cheat, fraud, matchmaking

Server-side validation, complex matchmaking, fraud detection. Playroom is great for trust-based party games; not for ranked competitive play.

Pylon also covers everything else

Pylon is a backend framework — your game becomes one of several products you ship on the same binary. Account UI, marketing site signup, support tools, content management all live next to the game shard.

Where Playroom Kit wins

What Playroom Kit does better today

Honest comparison — these are real reasons to pick Playroom Kit. If any of them are dealbreakers, choose accordingly.

Time-to-first-multiplayer is minutes

The Playroom SDK includes a discovery UI, room-code joins, and "just works" with a few lines of code. For a party game weekend hackathon, Playroom is unbeatable.

Phone-as-controller UX

Stream from your laptop, control from your phone. Playroom has a polished pattern; Pylon has no equivalent ready-made.

Built-in voice chat

Voice chat integration ships in the SDK.

Web/mobile cross-play out of the box

Handles platform differences invisibly.

Zero backend to deploy

Add the SDK, ship. Pylon needs a server running somewhere (even if it's a $5 VPS).

Migration

Coming from Playroom Kit

Most of the dev surface translates one-to-one. The biggest deltas show up as differences in shape, not features missing.

Playroom Kit	Pylon
Playroom room state (key-value)	Pylon entities + policies
`getState` / `setState`	Entity CRUD + reactive `useQuery`
Host-simulated game logic	`SimState::tick` on Pylon's `Shard`
Playroom room codes	`/api/shards/match` join flow
Playroom guest sessions	`/api/auth/guest` (or magic-code for real accounts)
Playroom phone-controller	Pylon WebSocket + your own UI (no shipped primitive)

Honest weakness

Where Pylon loses

Playroom's developer experience for "ship a party game this weekend" is genuinely better than any server-authoritative option, including Pylon. The room-code UX is excellent, the phone-as-controller story has no Pylon equivalent, and you ship with zero backend ops. For hackathon projects or MVPs validating a multiplayer idea, start with Playroom — migrate to Pylon when you outgrow the host-relay model.

Both / and

When using both is the right call

Some teams use Playroom for the lightweight party-game lobby + voice chat and Pylon for persistent player data + leaderboards + matchmaking. Clients pull from both. Unusual but valid — Playroom's strength is the realtime party-game shape; Pylon's strength is everything else around it.

Try Pylon — free Hobby tier on Cloud

No card, no setup. Run a real Pylon project against managed Postgres in under a minute. Migrate from Playroom Kitwhen you're ready — or run both.

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