Games like Aethel Mine
Games like Aethel Mine include Ninja Kiwi Archive, RimWorld, Vampire Survivors, The Escapists, and Timberman. We matched them by the tags players give Aethel Mine on Steam (Action, Strategy, Arcade, Futuristic, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Ninja Kiwi Archive
Shared: Strategy · Arcade · Action

RimWorld
Shared: Strategy · Colony Sim · Singleplayer

Vampire Survivors
Shared: Singleplayer · Action · Arcade

The Escapists
Shared: Strategy · Singleplayer · Action

Timberman
Shared: Action · Casual · Arcade

Bloons TD 6
Shared: Strategy · Singleplayer · Casual

ShellShock Live
Shared: Strategy · Action · Casual

Songs of Syx
Shared: Strategy · Colony Sim · Sandbox

Bloons TD 5
Shared: Strategy · Action · Casual

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

Totally Accurate Battle Simulator
Shared: Strategy · Sandbox · Singleplayer

Kingdom Rush - Tower Defense
Shared: Strategy · Singleplayer · Action

Oxygen Not Included
Shared: Colony Sim · Singleplayer · Strategy

UFO 50
Shared: Action · Arcade · Strategy

A Dance of Fire and Ice
Shared: Singleplayer · Arcade · Action

Game Dev Tycoon
Shared: Strategy · Singleplayer · Casual

Your Only Move Is HUSTLE
Shared: Action · Strategy · Sandbox

Prison Architect
Shared: Strategy · Sandbox · Colony Sim

Rhythm Doctor
Shared: Action · Singleplayer · Strategy

People Playground
Shared: Sandbox · Singleplayer · 2D

Reassembly
Shared: Strategy · Action · Sandbox

Shelldiver
Shared: Arcade · Casual · Strategy

Planes, Bullets and Vodka
Shared: Action · Casual · Arcade

Total Tank Simulator
Shared: Strategy · Action · Sandbox