Games like Heartbeat: Regret
Games like Heartbeat: Regret include LIMBO, The Room, DISTRAINT: Deluxe Edition, Firework, and Gunpoint. We matched them by the tags players give Heartbeat: Regret on Steam (Short, Rhythm, Typing, Horror, and Stealth): closest matches first, and among equally close ones the better-known games.

LIMBO
Shared: Indie · Horror · Short

The Room
Shared: Short · Mystery · Singleplayer

DISTRAINT: Deluxe Edition
Shared: Horror · Indie · Short

Firework
Shared: Horror · Indie · Mystery

Gunpoint
Shared: Stealth · Indie · Singleplayer

Mark of the Ninja
Shared: Stealth · Indie · Side Scroller

Little Nightmares
Shared: Horror · Singleplayer · Indie

Poppy Playtime
Shared: Horror · Singleplayer · Puzzle

The Room Two
Shared: Horror · Mystery · Short

Little Nightmares II
Shared: Horror · Singleplayer · Stealth

Samsara Room
Shared: Indie · Short · Singleplayer

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · Stealth

Bendy and the Dark Revival
Shared: Horror · Singleplayer · Indie

The White Door
Shared: Indie · Short · Mystery

CARRION
Shared: Horror · Indie · Singleplayer

Sally Face - Episode One
Shared: Horror · Indie · Mystery

Five Nights at Freddy's: Into the Pit
Shared: Horror · Singleplayer · 2D

Unheard - Voices of Crime
Shared: Short · Mystery · Indie

Mark of the Ninja: Remastered
Shared: Stealth · Indie · Side Scroller

Geometry Dash
Shared: Rhythm · Singleplayer · 2D

Bendy and the Ink Machine
Shared: Horror · Singleplayer · Indie

DARQ: Complete Edition
Shared: Horror · Singleplayer · Side Scroller

Firewatch
Shared: Mystery · Singleplayer · Short

A Dance of Fire and Ice
Shared: Rhythm · Indie · Singleplayer