Limits and plans

Plan limits

	Free	Small Game	Studio	Build Your Own
Price	$0	$19/mo	$99/mo	From $199/mo
Projects	1	3	Unlimited	10+
Concurrent players	50	500	5,000	10,000+
Rooms per project	3	Unlimited	Unlimited	Unlimited
Usage history	7 days	30 days	90 days	90 days
Custom domains	No	No	Yes	Yes
REST API access	No	No	Yes	Yes

Functions, properties, events, WebSocket and UDP, and API key rotation are available on every plan.

When a limit is reached

A join that would exceed your concurrent player or room limit is refused with JOIN_REJECTED. Players already connected are not affected. Upgrade from Billing in the dashboard, or request a custom plan on the pricing page.

Connection limits

Limit	Value
Players per room	100
Messages per connection	30 per second, bursts up to 60
WebSocket message size	64 KB
UDP datagram size	8 KB
WebSocket connections per IP address	50
New UDP sessions per IP address	30 per minute
Failed connection attempts per IP address	30 per minute

A connection that keeps sending far beyond its limit is disconnected.

Compute budget

Each project has a compute budget so one busy game cannot slow down others: 250 ms of Function CPU time per second on Free, 500 ms on Small Game, 800 ms on Studio and 900 ms on Build Your Own, with short bursts allowed. Typical Functions take 1 to 3 ms, so this allows hundreds of calls per second. Calls beyond the budget fail with RATE_LIMITED.

Function limits

Limit	Value
CPU time per call	150 ms
Memory per call	32 MB
Property value size	64 KB
Property writes per call	100
Broadcasts per call	50
Function source size	20,000 characters
Functions per project	50
Global properties per project	200

Naming limits

Room IDs and player IDs use letters, numbers, underscores and hyphens, up to 64 characters. Subdomains are 3 to 32 characters of lowercase letters, numbers and hyphens.