PC download charts: 'Valve Index', 'Borderlands 3' vault to top of Steam charts amid peak player count

'Borderlands 3' was released on PC gaming's dominant storefront Steam after six months on the Epic Game Store

Sales of a limited and rapidly depleted restock of the Valve Index VR headset system were enough to propel it to the top of Steam's weekly ranking, while "Borderlands 3" climbed high on both Steam and its original Epic Games Store home, "Counter-Strike: Global Offensive" and achieved a new high along with the Steam platform as a whole.

Back in stock for a day on March 8 before selling out again shortly afterwards, sales of the $499 USD Valve Index headset ($999 USD with controllers, base stations) were significant enough to push it to the top of Steam's revenue-based ranking for the week ending March 15, 2020.

The store is run by Steam owner and operator Valve, which saw an all-time high of concurrent users edge past 20.3 million that same day.

The peak is thought to be linked to an increase in users and players as Coronavirus quarantines, mandatory and voluntary, are being put in place around the world.

That peak was helped over the line by Valve's free games "Counter-Strike: Global Offensive" (1.024m concurrent players, a new record) and "Dota 2" (701k concurrent) as well as PUBG Corp's retail game "PlayerUnknown's Battlegrounds" (515k concurrent).

Putting aside the Valve Index kit, whose tentpole title "Half-Life: Alyx" releases March 23, Steam's best-selling game was "Borderlands 3."

The offworld shooting, looting, and multiplayer hooting action game was released on PlayStation 4 and Xbox One in September 2019 and, at the same time on PC, through the Epic Games Store.

Now that the six-month Epic exclusivity period has been fulfilled, "Borderlands 3" is also available through Steam (with multiplayer compatibility between the two versions), and at a 50% launch discount to boot -- though without the franchise's three-pack of cosmetic items for Epic's effective coat of arms and "PUBG" rival, "Fortnite."

Over on the Humble Store, an authorized reseller for both Epic, Steam, and a selection of other PC gaming clients, a themed sale promotion for games with female protagonists provided a platform for "Nier: Automata" to scale the site's bestseller's chart, followed by the well-received "A Plague Tale: Innocence," "Control" and "Shadow of the Tomb Raider," with "Final Fantasy XV"'s presence the result of a simultaneous catalog promotion by publisher Square Enix.

Steam* (steampowered.com)
1. Valve Index VR
2 & 3. Borderlands 3 (pre-order and post-release)
4. Ori and the Will of the Wisps
5. Tom Clancy's Rainbow Six Siege Year 5 Pass
*Steam chart based on revenue rather than units.

Epic Game Store Top Sellers (epicgames.com)
1. Borderlands 3
2. The Division 2
3. Red Dead Redemption 2
4. Satisfactory
5. Assassin's Creed Odyssey

Humble (humblebundle.com)
1. Nier: Automata (Steam)
2. Final Fantasy XV (Steam)
3. A Plague Tale: Innocence (Steam)
4. Control (Epic Game Store)
5. Shadow of the Tomb Raider (Steam)