Sunspire Climb

Climb a spire of floating stone ledges over a lake, collect five crystals, and reach the beacon at the summit. A clock runs; checkpoints catch you when you fall.

Controls

	move	jump
phone	on-screen stick, bottom left	Jump button, bottom right
controller	left stick	the lower face button (A / Cross / B)
desk	WASD	Space

No look control is needed to play, on any device. The camera holds a fixed angle and follows you, so the direction you push is the direction you go on screen — one thumb is enough on a phone.

Built to be forgiving

The whole course is sized for a phone, then checked not to hurt the other two:

• Double jump, so a mistimed tap is recoverable rather than fatal.
• Extended coyote time (0.18 s) and jump buffering (0.15 s) — touch has more input latency than a key, and the stock values are tuned for the device that needs the slack least.
• Full air control, so a jump you misjudged can still be steered.
• Ledges 5.4 m across against gaps a jump clears with room to spare. Nothing here needs frame-perfect timing or pixel-perfect landing.
• Four checkpoints. A fall costs about two seconds, never the run.
• Sprint exists but the course is sized for the walk, so no gap is desk-only.

Reaching the beacon always finishes the run and reports your time and crystals — a missed crystal is a reason to run it again, not a reason to backtrack.

Verified, not assumed

Every device was driven through the complete 17-waypoint course (both crystal detours included) using only that device's own controls:

device	waypoints	crystals	time	falls
touch	17/17	5/5	37.7 s	0
gamepad	17/17	5/5	37.9 s	0
keyboard	17/17	5/5	36.8 s	0

The keyboard run is what earned the wider ledges: holding W+A tracks 45° while some legs want 30°, so a device that can only aim in eight directions walked off the side of a narrower platform. An analogue stick had hidden that.

Multiplayer

The world is shared, so each player runs their own climb: progress, clock and HUD are per-peer, and collecting a crystal changes nothing about the crystal for anybody else — it fills a pip on your own HUD. Race someone up it.