As per terms of the original acquisition, 80 per cent of the Finnish developer was acquired for $560 million, with the remaining 20 per cent to be purchased over the next three years based on performance.
The first earn-out payment in 2020 was worth $122 million, but the second - just announced - was double at $240 million.
This means Small Giant's acquisition price is now up to $922 million and almost certain to break the billion dollar (or ‘unicorn’) mark in 12 months time.
“It has been wildly successful,” noted Zynga COO Matthew Bromberg.
“And it’s good news for everyone. Nothing makes us happier to pay them this money.
“It just goes to show the value of top games.”