FREESKIING SIMULATION // SYSTEM BOOT

SLOPELINE

CREATED BY O. GRIMSTAD • V5.0 ENGINE
INITIALIZING ALPINE ENGINE
12%
CONNECTING THREE.JS WEBGL CORE...
WEBGL 3D
STATE
AUDIO
TERRAIN
RIG
480Hz PHYSICS
SCORE 0
COMBO x1
BEST: 0
00:00.00
GATE: 0 / 30
BEST: --:--.--
SWITCH CORK 720 JAPAN
+3,600 PTS
COMBO x2
HOLD W / SHIFT FAST-FORWARD LIFT | SPACE SKIP TO SUMMIT
0
KM/H
MULTIPLAYER // REALTIME

MULTIPLAYER

CLICK + DRAG ROTATE CHARACTER 360°
FREESKIING SIMULATION

SLOPELINE

CREATED BY O. GRIMSTAD ↗
ACTIVE SESSION

RUN PAUSED

PHYSICS LOCKED · TIMER HALTED

Slopeline 3D Skiing

Slopeline is a browser-based 3D skiing game written with Three.js and the Web Audio API. It includes freestyle park skiing and timed downhill slalom racing.

Slopeline 3D alpine skiing gameplay preview showing mountain terrain, kickers, and rails

Game Modes

  • Freestyle Park: Jump kickers, slide rails and boxes, spin, flip, and hold grabs.
  • Downhill Slalom: Race down the course through 30 timed gates.

Features & Physics

  • Carving edge pressure, snow resistance, and ragdoll crash physics.
  • Synthesized sound effects for carving, grinding, landings, and wind.
  • Third-person chase and first-person camera views.
  • Gamepad, keyboard, and touch controls.
  • Offline play as a Progressive Web App.

Controls

Steer with A and D or the left analog stick. Hold Shift to speed tuck. Press Space or the bottom face button to jump. Press Ctrl, C, or the right face button to stop. Use W and S or the analog stick to flip in the air, and press grab keys (Z, X, Q, E) to hold grabs.

SESSION RECORDS SLOPE V5.2
Guest Mode
PARK HIGH SCORE
0 PTS
SLALOM BEST TIME
--:--.--

Log in or create an account to save scores to the Global Leaderboard.

NAVIGATE [W / S / ARROWS]
SELECT [SPACE / ENTER]
MENU [ESC]

LOG IN / SIGN UP

No email needed. Remember your password; email recovery is unavailable.

YOUR STATS

COMBINED TOTAL SCORE
0 PTS
BEST SCORE IN ONE RUN
0 PTS
BEST SLALOM TIME
--:--.--
BEST COMBO
x1
BEST TRICK SCORE
0 PTS
TRICKS LANDED
0

Combined totals and trick counts track points earned from this update.

GLOBAL LEADERBOARD

    DELETE ACCOUNT

    This permanently deletes your account, leaderboard entry, settings, appearance, and records. This cannot be undone.

    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.

    AUDIO
    Master Volume
    Sound effects and wind volume
    100%
    Sound Output
    Mute or unmute all audio
    GAMEPLAY & CAMERA
    Speedometer Units
    Speedometer display unit
    Default Camera View
    Third-person chase or first-person view
    Switch Look Shoulder
    Shoulder to look over when skiing backwards
    Touch Controls
    On-screen touch controls for mobile devices
    SAVED DATA
    Reset Local Records
    Clear saved high scores and best times
    KEYBOARD CONTROLS
    A / DCarve & Steer
    SHIFTSpeed Tuck
    SPACEJump / Recover
    CTRL / CHockey Stop
    W / UPPole Push / Frontflip
    S / DOWNBackflip / Lean Back
    Z / XMute / Japan Grab
    Q / ENose / Tail Grab
    VCamera View
    T / RSummit / Quick Reset
    ESCMain Menu
    GAMEPAD CONTROLS
    LEFT STICKSteer & Balance
    ✕ / AJump
    □ / XSpeed Tuck
    ◯ / BHockey Stop
    △ / YPole Push
    L1 / R1Nose / Tail Grab
    L2 / R2Mute / Japan Grab
    COMBOSHold multiple grabs together
    GAME MODES & TRICKS
    PARK MODEKickers, rails, and jump combos
    SLALOM30 gates downhill race against the clock
    RAILSUse A and D to balance on rails
    SPINSCarve before takeoff to spin
    TOUCHVirtual stick and action buttons
    CREATOR & DEVELOPER
    O. GRIMSTAD ↗ LINKEDIN SUPPORT V2 DISCORD
    PROGRAMMING & GAME DESIGN
    PHYSICS
    Carving edge pressure, snow resistance, ski flex, and ragdoll crash physics.
    FREESTYLE PARK
    Rail balance mechanics, spin and flip tracking, and grab combo scoring.
    AUDIO
    Synthesized sound using the Web Audio API for carving, grinding, wind, and landings.
    GRAPHICS
    Terrain heightmaps, pine trees, snow particle effects, and resort structures.
    SLOPELINE // CREATED BY O. GRIMSTAD ↗
    TAB CYCLE SCREENS
    ESC RETURN TO GAME / MENU
    SLOPELINE IN-WORLD AD NETWORK

    MOUNTAIN SPONSORSHIPS

    8 VERIFIED 3D SLOTS // 30-DAY ACTIVE RUNTIME // INSTANT GLOBAL SYNC
    SLOPELINE AD REAL ESTATE
    SELECT AN AD SPACE

    Click any green OPEN SLOT on the left to design your billboard, preview artwork live on the 3D mountain, and check out securely with Stripe.

    ✓ Highway-scale unlit 3D meshes with maximum hardware anisotropic filtering
    ✓ Zero Z-fighting with polygon offset & surface-normal offsets
    ✓ Interactive image cropper and auto-adapting procedural designer
    ✓ Live Realtime sync across all active players in Supabase
    START GATE TAKEOVER

    SUMMIT FREE SKI ARCHWAY

    $200 / 30 DAYS • 4:1 ASPECT RATIO
    ALL-IN-ONE GATE TAKEOVER: Includes the 4:1 top banner AND both 1:3 vertical side pillars. Your artwork and destination link sync across all three meshes automatically.
    PROCEDURAL BILLBOARD DESIGNER
    Full billboard flood • High-contrast typography • Visible across mountain slopes
    UPLOAD LOGO OR ENTER MONOGRAM
    SL
    CLICK TO UPLOAD LOGO
    PNG, JPG, or SVG
    MONOGRAM
    0/32
    Massive 80px bold uppercase header visible across the slopes
    0/80
    Punchy 32px secondary copy underneath the title
    Skiers are redirected here when clicking your ad in-game
    Billboard preview
    4:1 TOP ARCH BANNER
    4:1 top banner preview
    1:3 PILLARS
    1:3 pillar preview
    Shown in hover tooltips and mountain sponsor registry
    Skiers are redirected here when clicking your ad in-game
    PNG, JPG, OR WEBP
    CLICK TO BROWSE or drag and drop image file PNG, JPG, or WebP • Opens interactive framing & crop tool below
    IMAGE FRAMING & CROP
    ZOOM 1.0x
    DRAG TO PAN • SLIDE TO ZOOM • CROP APPLIES LIVE TO 3D MOUNTAIN
    LIVE 3D PREVIEW ACTIVE ON MOUNTAIN

    Your graphic is rendering directly onto the 3D resort mesh in real-time!

    Secure checkout powered by Stripe • 30-day active runtime on the Slopeline mountain
    Have a promo code? Enter it on the Stripe checkout page.
    SLOPELINE IN-WORLD AD NETWORK // 30-DAY ACTIVE PROPS // INSTANT MULTIPLAYER REALTIME SYNC
    HIGHWAY-SCALE 16:9 TRUSS JUMBOTRON

    SUMMIT PARK DROP-IN JUMBOTRON

    1024 × 576 HD TEXTURE • 12.8M × 7.2M REAL-WORLD TRUSS
    Full resolution billboard artwork
    DESTINATION: https://yourbrand.com
    TEST LINK ↗