Games like Project Lounge
Games like Project Lounge include Garry's Mod, Tower Unite, Wobbly Life, Stardew Valley, and Liars Bar. We matched them by the tags players give Project Lounge on Steam (Casual, Indie, Sandbox, Multiplayer, and Early Access): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Sandbox · Multiplayer · Casual

Tower Unite
Shared: Casual · Multiplayer · Sandbox

Wobbly Life
Shared: Multiplayer · Sandbox · Casual

Stardew Valley
Shared: Multiplayer · Sandbox · Indie

Liars Bar
Shared: Casual · Multiplayer · Indie

Terraria
Shared: Sandbox · Multiplayer · Indie

WEBFISHING
Shared: Casual · Multiplayer · Indie

Golf With Your Friends
Shared: Casual · Multiplayer · Indie

Witch It
Shared: Casual · Multiplayer · Indie

Into The Flames
Shared: Casual · Indie · Multiplayer

House Flipper
Shared: Multiplayer · Casual · Sandbox

Golf It!
Shared: Casual · Multiplayer · Indie

PowerWash Simulator
Shared: Casual · Multiplayer · Sandbox

MECCHA CHAMELEON
Shared: Casual · Multiplayer · Indie

Plague Inc: Evolved
Shared: Indie · Casual · Multiplayer

Teardown
Shared: Sandbox · Multiplayer · Indie

Project Zomboid
Shared: Multiplayer · Sandbox · Indie

Human Fall Flat
Shared: Multiplayer · Sandbox · Indie

Starbound
Shared: Sandbox · Multiplayer · Casual

PowerWash Simulator 2
Shared: Casual · Multiplayer · Sandbox

Granny Simulator
Shared: Multiplayer · Indie · Casual

ShellShock Live
Shared: Multiplayer · Casual · Early Access

Town of Salem
Shared: Multiplayer · Indie · Casual

Bloons TD 6
Shared: Multiplayer · Casual · Sandbox