BETA$25 during the beta, $75 once 1.0 is released. Your license covers every future version.

Good CAD. Yours to keep.

Parts, assemblies and engineering drawings. Pay once, install it, use it. No subscription. No cloud account.

Download Buy · $25$75 when beta testing ends

Windows 10/11 64-bit · Linux x86-64 · Built on OpenCASCADEFree to download and view; a license unlocks editing.

The Crusade part window with the Hole Wizard placing 1/4-20 tapped holes in a motor mount plate — The motor mount: modeled in Crusade, then rendered in it.

The finished motor mount, rendered: aluminum plate on a blue base with black screws — The motor mount: modeled in Crusade, then rendered in it.

Own itA license you buy once. It keeps working whether or not you renew anything.

A familiar workflowSketch, feature tree, assemblies, drawings. If you've used parametric CAD, you already know your way around.

Strength checks built inSimpleSim tells you the factor of safety while you model, not after.

Windows and LinuxNative on both. Same files, same features, one license.

PART MODELING

Sketch it. Extrude it. Change your mind.

Extrude, revolve, sweep, loft, fillet, shell, draft. Dimensions accept math and variables. Edit any feature in the tree and everything after it rebuilds.

Hole Wizard · modeled threads · multi-body parts · direct editing of STEP

The part window with a modeled part and its feature tree

ASSEMBLIES

Real fasteners, already in the box.

Mate parts, drop in ISO and ANSI screws with washers and nuts, then check for interference before anything gets cut.

Fastened mates · collision detection · exploded views · motion studies as GIFs

An assembly with socket-head screws and a hex bolt

DRAWINGS

Drawings that don't need to be exported.

Standard, section, detail and broken views. GD&T, hole tables, weld symbols and a title block with your logo. No license needed to view, and they can still be exported to PDF or DXF if desired.

A drawing sheet with GD&T frames and a hole table

SIMPLESIM

Know it holds before you weld it.

Live strength checks on beams, shafts, plates and frames. Stress, deflection, buckling and fatigue update as you change the model.

6.03factor of safety, solved in 91 ms

SimpleSim results on a welded frame under load

SHEET METAL & WELDMENTS

For those who fabricate with sheet metal.

Flanges, hems, jogs and flat patterns to DXF. Structural members along sketch lines, mitered at the corners, with a cut list you can copy straight to the saw.

A sheet metal part with a hem and an edge flange

RENDERING

Show the customer the finish.

Path-traced images with real materials: anodized, black oxide, powder coat, brass, chrome.

Also: Measure, variables and configurations, cost estimate, CNC and 3D-print checks, STEP / IGES / STL / 3MF, Pack and Go, version history, auto save.

All features →

WHY CRUSADE

Professional CAD costs a fortune, it's rented by the year, and it still gets in your way. This is my 'crusade' against that: good, affordable CAD you buy once and keep.

I'm an engineering student, not a software company. I built Crusade with Claude Code (Opus 5.5 and Fable 5.1). I have gotten so sick and tired of using garbage CAD software that costs $2,000+ a year, so I decided to stop whining and make my own. It started as something for just myself, but quickly became something I wanted to share. It's early, and it hasn't been tested as much as I'd like, so I'd appreciate letting me know if you run into any issues. SimpleSim is my attempt to make rough simulation values near instant. It has not been tested a ton yet, so (like always) double check and do physical testing to ensure your design is adequate. There currently is a lot of talk about decompiling software, this was NOT made using that. This was made from simply using Claude code to design what I wanted. If you choose to use this I hope you enjoy!

- Kyle Chandler

BETA PRICE

Get in early, pay less, keep it forever.

During the beta a license is $25; once 1.0 is released it's $75. The license is perpetual: it stays valid for every version after it, and you never pay the difference.

Beta priceNOW

$25

One-time, during the beta. A full perpetual license that covers every future version.

Buy for $25$75 when beta testing ends

After 1.0LATER

$75

The normal price once 1.0 is released. Still one-time, still yours to keep.

Stop renting your tools.

$25 during the beta, $75 once 1.0 is released. One-time, and the same license covers every future version.

Download See pricing