A mini 4WD career racer where setup is everything — zero input once the race starts. 55 parts mapped to real physics (no fake buffs), 9 AI rivals playing by exactly your rules, an F1-style 8-round season with sponsors and paddock drama. Tune, watch, learn, win.

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About This Game

Once the light goes green, all you can do is watch. The race was already won — or lost — in your garage.

Redline Rookie is a top-down career racing game about pre-race engineering — a love letter to the mini 4WD hobby. No throttle, no steering, no fake "boost button". Your only weapon is the setup you built before the start line.

Setup Is Everything

  • 7 slots × 55 parts: motors, gears, tires, guide rollers, chassis, batteries, shells and wings
  • Every part maps to real physics — torque curves, drivetrain efficiency, rolling resistance, roller friction, center of gravity, voltage sag. No fake stat buffs.
  • The garage shows live derived stats and deltas: top speed, acceleration, per-corner stability margin, total weight

Physics You Can See

  • Practice telemetry: speed-vs-distance curves, per-corner minimum speeds, motor temperature and battery voltage, ghost comparison
  • The stability index S decides everything: under 0.85 you're solid, 0.85–1.0 is dancing on a knife edge, S≥1 means flying off the track
  • The speed-vs-stability tension isn't hand-tuned numbers — it emerges from a 240 Hz physics simulation

Nine Rivals, Zero Rubber-Banding

  • 9 AI drivers with personalities: the reckless speed demon, the steady veteran, the gifted rookie, the rich kid with deep pockets…
  • They run your exact physics, shop in your exact store, and grow on real budgets across the season
  • When the speed demon overcooks a corner, he really does fly off

A Career With F1 Bones

  • 8-round season, F1 scoring, lane picks in reverse championship order — backmarkers choose first
  • Sponsor objectives, prize money, parts unlocking in waves — a proper arms race
  • Transfer offers, paddock drama events, post-race headlines: your season tells its own story

Deterministic Simulation

  • Fixed-step 240 Hz physics: same seed + same setup = identical result, frame for frame
  • When you lose, it's not luck. Find the missing 0.3s in the telemetry, fix the setup, go again.

Simplified Chinese / English.

Redline Rookie is an independent game, not affiliated with, sponsored by, or endorsed by TAMIYA. "Mini 4WD" is used descriptively to refer to the hobby genre; all vehicles and parts are original designs.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Fully procedural art & audio.

System Requirements

Windows
macOS
    Minimum:
    • OS:
    • Processor:
    • Memory: 4 GB RAM
    • Graphics:
    • Storage: 500 MB available space
    • Additional Notes:
    Minimum:
    • OS:
    • Processor:
    • Memory: 4 GB RAM
    • Graphics:
    • Storage: 500 MB available space
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.
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