Games like Ad Fundum
Games like Ad Fundum include A Game About Digging A Hole, DigDigDrill, Super Mining Mechs, Meltopia, and SteamWorld Dig. We matched them by the tags players give Ad Fundum on Steam (Mining, Collectathon, Underground, Mechs, and Character Customization): closest matches first, and among equally close ones the better-known games.

A Game About Digging A Hole
Shared: Mining · Exploration · Underground

DigDigDrill
Shared: Mining · Collectathon · Underground

Super Mining Mechs
Shared: Collectathon · Mechs · Character Customization

Meltopia
Shared: Mining · Underground · Exploration

SteamWorld Dig
Shared: Mining · Steampunk · Platformer

Wall World
Shared: Mining · Exploration · Mechs

Luma Island
Shared: Simulation · Casual · Exploration

Sun Haven
Shared: Character Customization · RPG · Simulation

Super Motherload
Shared: Mining · Underground · Casual

SteamWorld Dig 2
Shared: Mining · Steampunk · Adventure

Littlewood
Shared: Collectathon · Simulation · RPG

EVE Online
Shared: Exploration · Simulation · Mining

Yooka-Replaylee
Shared: Collectathon · Exploration · Character Customization

Coromon
Shared: Collectathon · Exploration · Character Customization

My Time at Portia
Shared: RPG · Simulation · Casual

Keep Digging
Shared: Mining · Exploration · Simulation

Mining Mechs
Shared: Mining · Underground · Exploration

BORE BLASTERS
Shared: Mining · Exploration · Collectathon

Digseum
Shared: Mining · Casual · Simulation

Chipmatic
Shared: Mining · Underground · Collectathon

The Spotter: Dig or Die
Shared: Mining · Underground · Exploration

Melvor Idle
Shared: Mining · Casual · RPG

Gold Mining Simulator
Shared: Mining · Simulation · Exploration

Miner: Dig Deep
Shared: Mining · Underground · Procedural Generation