Games like Do Not Feed the Monkeys
Games like Do Not Feed the Monkeys include Beholder, Papers, Please, Beholder Conductor, Beholder 2, and Undertale. We matched them by the tags players give Do Not Feed the Monkeys on Steam (Point & Click, Political Sim, Management, Dark Humor, and Choices Matter): closest matches first, and among equally close ones the better-known games.

Beholder
Shared: Political Sim · Choices Matter · Strategy

Papers, Please
Shared: Point & Click · Pixel Graphics · Multiple Endings

Beholder Conductor
Shared: Political Sim · Choices Matter · Point & Click

Beholder 2
Shared: Political Sim · Choices Matter · Strategy

Undertale
Shared: Choices Matter · Multiple Endings · Story Rich

Beholder 3
Shared: Political Sim · Point & Click · Strategy

Game Dev Tycoon
Shared: Management · Strategy · 2D

Not For Broadcast
Shared: Choices Matter · Management · Political Sim

Death and Taxes
Shared: Choices Matter · Point & Click · Strategy

60 Seconds! Reatomized
Shared: Dark Humor · Point & Click · 2D

Yes, Your Grace
Shared: Choices Matter · Management · Pixel Graphics

No Umbrellas Allowed
Shared: Management · Strategy · Choices Matter

Little Misfortune
Shared: Point & Click · Choices Matter · Story Rich

The Henry Stickmin Collection
Shared: Multiple Endings · Point & Click · Choices Matter

This Is the Police
Shared: Management · Strategy · Choices Matter

Tropico 6
Shared: Management · Political Sim · Strategy

There Is No Game: Wrong Dimension
Shared: Point & Click · Pixel Graphics · Indie

OneShot
Shared: Pixel Graphics · Story Rich · Choices Matter

This War of Mine
Shared: Choices Matter · Strategy · Management

Democracy 4
Shared: Political Sim · Management · Strategy

Thank You For Your Application
Shared: Point & Click · 2D · Choices Matter

The Red Strings Club
Shared: Choices Matter · Pixel Graphics · Point & Click

Graveyard Keeper
Shared: Management · Pixel Graphics · Dark Humor

Deponia
Shared: Point & Click · Dark Humor · 2D