SLOPELINE
INITIALIZING ALPINE PHYSICS ENGINE...

WebGL is Required

Slopeline requires WebGL to render real-time 3D mountain slopes and player physics.

Please enable hardware acceleration or WebGL in your browser settings to play.

SCORE 0
COMBO x1
BEST: 0
00:00.00
GATE: 0 / 30
BEST: --:--.--
SWITCH CORK 720 JAPAN
+3,600 PTS
COMBO x2
RAIL BALANCE (A / D) • [SPACE] POP OFF
0
KM/H
TUCK CARVE AIR
ARCADE FREESKIING

SLOPELINE

CREATED BY O. GRIMSTAD ↗

About Slopeline 3D Skiing

Slopeline is a free browser-based 3D skiing game created by O. Grimstad. Built with Three.js and the Web Audio API, it delivers alpine downhill freeskiing, terrain park tricks, and timed slalom racing without downloads or plugins.

Game Modes

  • Freestyle Terrain Park: Hit competition-style kickers, tabletops, and hip jumps. Slide and balance on boxes and rails. Execute 360, 720, and 1080 spins, frontflips, backflips, and aerial grabs including Mute, Japan, Nose, Tail, Safety, and Iron Cross combos.
  • Downhill Slalom Race: Navigate 30 timed gates down a steep alpine mountain course with real-time split timing and gate penalty tracking.

Features & Physics

  • Edge pressure carving physics, snow berm compaction, and dynamic ski displacement.
  • Real-time procedural Web Audio synthesizer generating authentic edge carve hiss, powder slashes, rail grinds, and alpine wind.
  • Third-person follow camera and first-person GoPro helmet camera views.
  • DualSense, Xbox, and Switch Pro gamepad support with vibration rumble.
  • Mobile touch virtual thumbstick and action controls.
  • Progressive Web App (PWA) with offline play.

Keyboard & Gamepad Controls

Steer with A/D or Left Stick. Hold Shift to speed tuck. Jump off kicker lips with Spacebar or A button. Hockey stop and brake with Ctrl, C, or B button. Push with poles using W or Y button. Perform flips and spins with W/S or Left Stick in flight, and link grabs using Z, X, Q, E, C, or triggers.

SESSION RECORDS SLOPE V5.2
PARK HIGH SCORE
0 PTS
SLALOM BEST TIME
--:--.--
NAVIGATE [W / S / ARROWS]
SELECT [SPACE / ENTER]
MENU [ESC]
AUDIO CONFIGURATION
Master Volume
Sound effects, carve hiss & wind audio
100%
Sound Output
Toggle procedural audio engine
GAMEPLAY & PERSPECTIVE
Speedometer Units
Digital readout velocity format
Default Camera View
Third-person chase vs helmet POV
Touch Controls
Virtual joystick & action buttons overlay
DATA & RECORDS
Reset Local Records
Clear saved high score and personal best times
⌨️ KEYBOARD CONTROLS
A / DCarve & Steer
SHIFTSpeed Tuck / Iron Cross
SPACEJump / Pop Off Lip / Recover
CTRL / CHockey Stop / Safety Grab
W / UPPole Push / Frontflip
S / DOWNBackflip / Lean Back
Z / XMute Grab / Japan Grab
Q / ENose Grab / Tail Grab
VToggle Camera View
T / RTeleport Summit / Quick Reset
ESCMain Menu
🎮 GAMEPAD (DUALSENSE / XBOX)
LEFT STICKSteer & Pitch Balance
✕ / AOllie & Jump Lip
□ / XAerodynamic Speed Tuck
◯ / BHockey Stop & Safety Grab
△ / YPole Push Acceleration
L1 / R1Nose / Tail Grab
L2 / R2Mute / Japan Grab
COMBOSHold multiple grabs together
🏂 GAME MODES & TRICK BIBLE
PARK MODEHit kickers, 50-50 rails & combos
SLALOM30 gates downhill race against clock
RAILSUse A / D to balance on top
SPINSCarve before takeoff to launch corks
TOUCHVirtual thumbpad & action buttons
CREATOR & LEAD DEVELOPER
O. GRIMSTAD ↗ LINKEDIN
ARCHITECT OF SLOPELINE FREESKIING ENGINE
PHYSICS & DYNAMICS
Continuous carving edge pressure simulation, snow compaction resistance, dynamic ski displacement, and real-time ragdoll crash physics.
FREESTYLE PARK ENGINE
Interactive rail & box grind balance mechanics, rotation tracking for corks/flips/spins, and multi-grab combo linking system.
PROCEDURAL AUDIO
100% Web Audio API real-time synthesis: dynamic snow carving hiss, powder slashes, rail grind buzz, edge chatter, and atmospheric alpine wind.
THREE.JS RENDERING
Procedural alpine terrain heightmaps, low-poly pine forests, snow diamond-dust particle storms, and ski resort infrastructure.
SLOPELINE // CREATED BY O. GRIMSTAD ↗
TAB CYCLE SCREENS
ESC RETURN TO GAME / MENU