The Overwatch Lego sets are pretty cool, but for my money they don't hold a candle to the Homeworld kits available from a company called Brick Formation. Three ships, the Hiigaran Interceptor, Ion Cannon Frigate, and Destroyer, are currently available, and more are on the way from the Kushan, Taiidan, Turanic, and Vagyr factions.
These blocky ships look sweet, and they are an officially licensed Homeworld product, developed "in affiliation with Gearbox Publishing." The legality of the Lego half of the equation is little less clear-cut: The kits are "made from genuine Lego elements," but the site also specifies down in the fine print that the Lego Group "does not sponsor, authorize or endorse Brick Formation products."
I thought that maybe Brick Formation was working around potential legal entanglements by selling these Homeworld ships not as Lego sets, but as "brick-built collectibles." The images and teaser videos all show the ships in a fully-assembled state, suggesting that's how they arrive, but a pictorial review of the kits at Technabob confirms that they do in fact come unassembled: You either build it yourself, or you lose a piece, get mad that you can't finish it properly, and then find the lost piece six weeks later by stepping on it when you're not wearing shoes.
Whatever their legal status, these things are expensive. The 500-piece Hiigaran Interceptor goes for $250, and that's the cheapest of the bunch; the 1365-piece Hiigaran Destroyer costs $575 dollars. I really like Homeworld, but… no. Not even close to that much.
The kits were designed by noted Legosmith and 10K Club member Aaron Fiskum, and the Hiigaran Destroyer design has actually been kicking around for a few years: Fiskum posted it on Reddit in May 2016. Brick Formation is also working with Gearbox to create kits based on Homeworld: Deserts of Kharak, the ground-based prequel that lacks the iconic vehicles of Homeworld but is still an outstanding RTS.
I've emailed the company to ask about the legal status of its unauthorized Lego kits, and will update if I receive a reply. Have a look at all three ships in the set down below.