Games like TEEFS
Games like TEEFS include Alice's Gaze, Cookie Clicker, To The Core, That's not my Neighbor, and Melvor Idle. We matched them by the tags players give TEEFS on Steam (Casual, Incremental, Point & Click, 2D, and Dark Fantasy): closest matches first, and among equally close ones the better-known games.

Alice's Gaze
Shared: Incremental · Casual · Dark Fantasy

Cookie Clicker
Shared: Incremental · Casual · 2D

To The Core
Shared: Casual · Incremental · 2D

That's not my Neighbor
Shared: Casual · Point & Click · 2D

Melvor Idle
Shared: Casual · 2D · Singleplayer

Shelldiver
Shared: Casual · Incremental · 2D

Click the Button
Shared: Casual · Incremental · Point & Click

Unnamed Space Idle
Shared: Incremental · Casual · 2D

Scratch Inc.
Shared: Incremental · Casual · Automation

Insaniquarium Deluxe
Shared: Casual · Incremental · Singleplayer

Space Rock Breaker
Shared: Casual · Incremental · 2D

Keep on Mining!
Shared: Incremental · Casual · Singleplayer

Digseum
Shared: Casual · Incremental · Point & Click

Nodebuster
Shared: Casual · Incremental · 2D

Plantera
Shared: Incremental · Automation · Point & Click

A Game About Feeding A Black Hole
Shared: Casual · Incremental · 2D

Russian Life Simulator
Shared: Incremental · 2D · Singleplayer

Fortune Mill
Shared: Incremental · Automation · Casual

Bongo Cat
Shared: Casual · Incremental · 2D

Timberman
Shared: Casual · 2D · Singleplayer

Plants vs. Zombies GOTY Edition
Shared: Casual · Singleplayer · 2D

Fracture Field
Shared: Incremental · Casual · Automation

There Is No Game: Wrong Dimension
Shared: Point & Click · Casual · 2D

Marisa!ReturnTheBook!
Shared: Casual · Incremental · 2D

