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You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
How it worksTracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Lowest tracked price: CA$0.80 (Jul 9, 2026) · current best: CA$0.80 across 8 stores.
83% positive reviews all-time · 7 peak players in the last 30 days.
Right now the cheapest offer for Main Assembly is CA$0.80 at Gamivo. KingsPrice compares 8 offers from 8 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Main Assembly is CA$0.80 (recorded on Jul 9, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Main Assembly peaked at 7 concurrent players on Steam in the last 30 days (highest on Jul 12, 2026). The player chart on this page updates daily.
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
Create a free price alert on this page and KingsPrice will email you when Main Assembly drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions. Engineer each and every appendage with powerful visual programming letting you dictate the bots every move. When you’ve completed your masterpiece, open the world builder and craft the ultimate obstacle course to push your bot to its limit.
Alone or with fellow inventors, envision your design then make it a reality.
Create a world in which your bots will be challenged. Craft tracks for racing or complex obstacle courses that tease out all those lovely design flaws you didn’t know you had.
Show off your designer skills first-hand with up to three friends. Build worlds together to challenge each other's bots in different obstacles courses and tracks. Or smash each other's creations into metallic pulp (more coming soon).
No friends? No problems. We’ve created a single-player mode with over 100 challenges to test your inventions.
Don’t panic, we don’t expect you to code in C# (we’re doing that). In fact, it’s entirely optional, but if you’re up to the challenge we’ve designed a powerful visual programming tool for you to enhance your creations.
Add (or take) from the thousands of already created bots and worlds hand-crafted by our dedicated fans from all over the globe.
If you want to test the limits of your construction, then drive it off a cliff.
Audio & text: English
Text only: French, Italian, German, Spanish - Spain, Russian, Simplified Chinese, Traditional Chinese, Portuguese - Brazil, Japanese
