Buy Amazing Curves Racing PC key

Amazing Curves Racing (ACR) is a racing game built around driving on large, continuous 3D curved surfaces. Its custom Dragon Physics system models car motion without heavy damping or invisible driving aids, with jumps, drifts, curb strikes, suspension movement and collisions all emerging from the physics. You can race for personal records or play with friends, and switch between a gamepad and a force-feedback wheel.

Racing and control

You can start a race in under 3 seconds, without waiting in lobbies. If you want to manage rather than drive, Tuner Mode lets you tune a car, start from the back and watch the AI race. During a race, you can also turn on AI Autopilot to let the AI hold your position, then take over again at any time.

You can add large jumps to any track, sending a high-travel Formula Trophy chassis over them like a stadium truck or launching a sports car and trying to settle it through the corners. AI Anti-Tip can be switched off to allow cars to tumble in pileups, or on so the AI uses a physically modeled, rocket-style attitude control system to land and keep the pack competitive. Turbo Reset gets a car back into the race after a crash, while adjustable Dynamic BOP keeps the racing close.

Cars and tracks

The full version includes 8 tracks, each raced in both directions for 16 effective tracks. It has 2 sports car types and 1 formula-style chassis, with setups and aerodynamics for 10 cars in total, from low- to high-horsepower configurations. You can edit a vehicle’s setup in real time while it is on track, including during a race, with practically unlimited setup combinations. At 100% Dynamic BOP, cars can reach over 3,000 HP at 12,000 RPM and speeds above 400 MPH; speeds over 1,000 MPH have been tested on the Arc Oval track.

Dragon Physics

The physics engine evaluates tires and collisions against continuous and non-continuous bicubic polynomial 3D surfaces rather than traditional flat triangles and polygons. It runs at 100Hz with symplectic integration for energy conservation during collisions, airborne rotation with precession, and suspension behavior. The tire and suspension model calculates at 500Hz; traction, handling, on- and off-throttle oversteer, braking understeer and oversteer, tire chirps, and drivetrain and tachometer wobble emerge from the physics rather than being scripted effects.

A full car setup editor lets you tune the engine, transmission, suspension, mass distribution and aerodynamics.

Wheels and telemetry

Force feedback is calculated through a 1kHz pipeline optimized for Direct Drive wheelbases. As the front tires lose grip, the wheel lightens; you can choose between Direct feedback, with less lag and no power-steering feel, and Smooth feedback, with a hydraulic feel. A 1kHz hands-free detection system briefly cuts force feedback when it detects severe oscillation or a sudden hands-free state.

ACR supports SimHub and Sim Racing Studio (SRS) telemetry over UDP. It includes a SimHub dashboard, the C# SimHub plugin source code and a C++ header showing the struct memory layout.

VR and multiplayer

The rendering engine supports stereoscopic 3D at 90 to 120 frames per second, with physically modeled mirrors for 3D depth. The custom RUDP netcode is tested to remain stable at 2,000ms ping; at 50ms or less, its prediction model aims to make multiplayer look and feel local, without jitter.

Online races support up to 24 players and up to 88 cars, including on modest hardware such as the original Steam Deck.

Available content

• 8 tracks, raced in both directions for 16 effective tracks
• 2 sports car types and 1 formula-style chassis, with setups and aerodynamics for 10 cars total
• Gamepad, force-feedback wheel, pedals and shifter support; keyboard play is also possible with driving aids turned up
• The demo includes 3 cars and 2 tracks, one easy and one more challenging, and supports single-player play only