Hazelight's latest co-op indie title It Takes Two was the best-selling game on Steam last week.

The EA Originals-published project made its debut on the platform on March 25th; in its first week on sale, the game came in seventh, before rising to second the next week. New shooter IP Outriders from Square Enix and People Can Fly was previously No.1 but has dropped to fifth this week.

Second place goes to the newly-released Nemesis DLC for Paradox's sci-fi grand strategy game Stellaris, while the ever-present Index VR headset from Valve was the third highest-selling item of the week.

Sea of Thieves held onto the No.4 spot thanks to the Xbox Game Studios sale event that took place between April 8th and 12th. Rare's pirate romp was 50 per cent off during this time. It was recently announced that Sea of Thieves has attracted 20 million players in the first three years after its debut in March 2019.

Fellow Xbox Game Studios title Forza Horizon 4 came in ninth place having also been involved in the aforementioned sale. That's a drop from last week's No.3.

Meanwhile Valheim rises two places to No.7, while the Iceborne DLC for Monster Hunter World returns to the Steam Top Ten thanks to Capcom's publisher weekend sale. The game is 38 per cent off right now.

Endnight's The Forest takes eighth spot thanks to a 60 per cent price cut in a sale, while Coffee Stain Publishing's Satisfactory rounds off the Top Ten in the No.10 spot.

Here is the Steam Top Ten for the week ending April 17th:

1. It Takes Two, EA Originals
2. Stellaris: Nemesis, Paradox
3. Valve Index VR Kit, Valve
4. Sea of Thieves, Xbox Game Studios
5. Outriders, Square Enix
6. Valheim, Coffee Stain Publishing
7. Monster Hunter World: Iceborne, Capcom
8. The Forest, Endnight Games
9. Forza Horizon 4, Xbox Game Studios
10. Satisfactory, Coffee Stain Publishing