Rubik Mono One
Google Fonts · Hubert and Fischer · 2015

An ultra-bold monospaced geometric sans with the rounded warmth of Rubik, designed for high-impact headline use.
About
Rubik Mono One takes the friendly, rounded geometry of the Rubik family and applies a fixed-width grid with a single extremely heavy weight, producing text with a uniform, grid-like solidity. It is well suited to bold headlines, poster typography, tech branding, and screen-based display contexts where its monospaced rhythm adds visual structure. Cyrillic and Latin script support makes it a capable choice for multilingual display applications.
Classification
Rubik Mono One is a monospaced, ultra-bold geometric sans-serif sharing the rounded, low-contrast character of the Rubik family. Fixed-width spacing at a single heavy weight gives it a strong, assertive typographic presence.