5D Chess with Multiverse Time Travel (stylized in start case) is a 2020 chess variant video game released for Microsoft Windows, macOS, and Linux by American studio Thunkspace.

In addition, their movement abilities are generalized across the turn and timeline axes.

A player may make a move only using a piece that stands on a playable board.

The present line is a large vertical bar that always aligns itself with the active board which is the furthest left along the turn axis.

Turn Zero is a variant starting with a configuration in which there is an additional board for Black a half-turn earlier in the main timeline.

[6] Kotaku reviewer Nathan Grayson called the game "remarkably elegant for what it is".

[4] Arne Kaehler of ChessBase wrote that while the game ran well and is a fun chess variant, the opponent AI was not very competent.

[2] A Digitally Downloaded reviewer wrote that, due to the increasing complexity of the game as turns pass, it presents a "limitless well of possibility".

[7] Christopher Livingston of PC Gamer called the game "mind-bending".

[8] Jacob Aron of New Scientist wrote that the game "isn't for the faint-hearted" and "is brain-meltingly hard".

[9] Chess grandmaster Hikaru Nakamura played the game when appearing on VENN in August 2020.