Official specs from Steam

Marbles on Stream system requirements

Minimum and recommended PC specs as listed by the developer on Steam.

Minimum

NoteRequires a 64-bit processor and operating system
OSWindows 64-bit: 10
ProcessorIntel i5 3.0 GHz (or AMD equivalent)
Memory8 GB RAM
GraphicsNvidia 1060
DirectXVersion 11
NetworkBroadband Internet connection
Storage15 GB available space
Additional NotesMinimum specs may result in some unexpected game behavior and potential lag at certain points

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 64-bit: 10
ProcessorIntel i7 3.6 GHz (or better) (or AMD equivalent)
Memory16 GB RAM
GraphicsNvidia 1070 (or better) or Radeon RX 580 (or better)
DirectXVersion 11
NetworkBroadband Internet connection
Storage15 GB available space
Additional NotesRecommended specs for streaming and playing the game on the same machine

FAQ

What graphics card do I need for Marbles on Stream?

Minimum: Nvidia 1060. Recommended: Nvidia 1070 (or better) or Radeon RX 580 (or better).

How much RAM does Marbles on Stream need?

Marbles on Stream needs 8 GB RAM at minimum, 16 GB RAM recommended.

How big is Marbles on Stream?

Marbles on Stream requires 15 GB available space.

Does Marbles on Stream run on Mac or Steam Deck/Linux?

There is no native macOS version. There is no native Linux build (Proton compatibility may vary).