Games like Blowing Off Steam
Games like Blowing Off Steam include Thronefall, Kingdom Two Crowns, Mindustry, Border Pioneer, and They Are Billions. We matched them by the tags players give Blowing Off Steam on Steam (Tower Defense, RPG, Strategy, Time Management, and City Builder): closest matches first, and among equally close ones the better-known games.

Thronefall
Shared: Tower Defense · Strategy · City Builder

Kingdom Two Crowns
Shared: Tower Defense · City Builder · Base Building

Mindustry
Shared: Tower Defense · Base Building · Strategy

Border Pioneer
Shared: Tower Defense · Strategy · City Builder

They Are Billions
Shared: Strategy · Base Building · Tower Defense

The King is Watching
Shared: Tower Defense · Base Building · Strategy

Rise to Ruins
Shared: Tower Defense · Strategy · City Builder

Kingdom Rush - Tower Defense
Shared: Tower Defense · Strategy · 2D

Kingdom Rush 6: Genesis TD
Shared: Tower Defense · Strategy · Action

Orcs Must Die! 2
Shared: Tower Defense · Strategy · Action

GemCraft - Chasing Shadows
Shared: Tower Defense · Strategy · Action

The Last Spell
Shared: RPG · Strategy · Action

Factorio
Shared: Base Building · Strategy · Automation

Kingdom Rush 5: Alliance TD
Shared: Tower Defense · Strategy · 2D

Deathtrap
Shared: Tower Defense · RPG · Strategy

Kingdom Rush Frontiers - Tower Defense
Shared: Tower Defense · Strategy · 2D

The Escapists
Shared: Strategy · Action · 2D

Kingdom Rush Origins - Tower Defense
Shared: Tower Defense · Strategy · 2D

Mount & Blade II: Bannerlord
Shared: Strategy · RPG · Action

Frostpunk
Shared: City Builder · Strategy · Base Building

Bloons TD 6
Shared: Tower Defense · Strategy · 2D

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · 2D

Nordhold
Shared: Tower Defense · Strategy · Base Building

Infection Free Zone
Shared: Base Building · Strategy · City Builder