Buzzy $2 billion gaming startup Improbable has been dealt a major blow thanks to a weird fight with Unity
- Buzzy British game tech startup Improbable says its cloud gaming platform has been blocked by Unity.
- Improbably says that Unity, which claims to be the most popular game engine, changed its terms of conditions to block Improbable's SpatialOS platform.
- The move jeopardises all games built on SpatialOS and Unity, with at least one developer pulling their game offline until the dispute is resolved.
- Improbable has raised more than $600 million from backers such as SoftBank, and is worth around $2 billion.
Gaming technology firm Improbable has been dealt a blow after game engine Unity blocked the startup's core technology.
UK-based Improbable is valued at $2.2 billion and has raised around $600 million from backers such as SoftBank for its SpatialOS cloud gaming platform. SpatialOS plugs into different game engines - such as Unity - and allows third-party game developers to create massive online worlds.
Almost half of all games in the world are built on Unity, according to Unity's CEO.
According to a post published by Improbable on Thursday, Unity altered its terms and conditions in December to "disallow services like Improbable's to function with their engine."
According to Improbable, Unity hasn't given much further explanation.
"Overnight, this is an action by Unity that has immediately done harm to projects across the industry, including those of extremely vulnerable or small scale developers and damaged major projects in development over many years," Improbable wrote.
The change jeopardises the lineup of current and future games developed on Unity and Improbable's SpatialOS, which remains a nascent platform.
One game studio that was early in adopting SpatialOS, UK-based Spilt Milk, said it was pulling its multiplayer shooter "Lazarus" offline.
The company wrote on Twitter: "Hi - we've got some really bad news. Due to a dispute between Improbable & Unity we have to shut down the Lazarus servers. It's going to be down for an undetermined amount of time, basically until the dispute is resolved, one way or another."
Other developers are awaiting clarification about how their games will be affected. UK-based Bossa Studios launched the massively multiplayer online world "Worlds Adrift" to much fanfare in 2018.
Bossa CEO Henrique Olifiers told Business Insider it was too early to say whether the company would need to pull the game offline, and that the firm was awaiting clarification.
Improbable placed the blame squarely on Unity, and said the change could leave game creators in a difficult situation financially. The company said it was planning an emergency fund to help its partners.
The firm wrote "For now, we believe this unfortunate and counterproductive action to be an error in judgement or coordination failure within Unity. We are urgently working to clarify this situation and believe that a swift resolution may be possible."
An Improbable spokesman told Business Insider that it was difficult to estimate the potential financial impact on the startup, but added that the situation with Unity was "unique."
If the license change remains in place, it could put developers off using SpatialOS in future. The spokesman said Improbable was in the process of updating all of its partners.
The change is a blow, but won't impact all games running on SpatialOS. Midwinter Entertainment's upcoming "Scavengers", which is partly funded by Improbable, will run on Unreal, for example.
Business Insider has contacted Unity for comment.