Games like Bugs & Birdies
Games like Bugs & Birdies include Terraria, Don't Starve Together, Valheim, Raft, and Palworld. We matched them by the tags players give Bugs & Birdies on Steam (Open World Survival Craft, Online Co-Op, Multiplayer, Cozy, and Sandbox): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Open World Survival Craft · Multiplayer · Sandbox

Don't Starve Together
Shared: Open World Survival Craft · Co-op · Multiplayer

Valheim
Shared: Open World Survival Craft · Online Co-Op · Multiplayer

Raft
Shared: Open World Survival Craft · Multiplayer · Co-op

Palworld
Shared: Open World Survival Craft · Multiplayer · Online Co-Op

Starbound
Shared: Open World Survival Craft · Sandbox · Online Co-Op

Grounded
Shared: Open World Survival Craft · Co-op · Multiplayer

Rust
Shared: Open World Survival Craft · Multiplayer · Crafting

Green Hell
Shared: Open World Survival Craft · Online Co-Op · Multiplayer

Stardew Valley
Shared: Multiplayer · Farming Sim · Pixel Graphics

ARK: Survival Evolved
Shared: Open World Survival Craft · Multiplayer · Survival

7 Days to Die
Shared: Open World Survival Craft · Multiplayer · Survival

ICARUS
Shared: Open World Survival Craft · Multiplayer · Online Co-Op

Necesse
Shared: Open World Survival Craft · Multiplayer · Sandbox

Forager
Shared: Open World Survival Craft · Crafting · Survival

Project Zomboid
Shared: Open World Survival Craft · Multiplayer · Survival

Core Keeper
Shared: Multiplayer · Survival · Co-op

Abiotic Factor
Shared: Online Co-Op · Open World Survival Craft · Survival

Once Human
Shared: Multiplayer · Open World Survival Craft · Co-op

The Survivalists
Shared: Online Co-Op · Open World Survival Craft · Crafting

ASTRONEER
Shared: Open World Survival Craft · Multiplayer · Co-op

RuneScape: Dragonwilds
Shared: Open World Survival Craft · Multiplayer · Co-op

The Planet Crafter
Shared: Open World Survival Craft · Online Co-Op · Co-op

Satisfactory
Shared: Multiplayer · Co-op · Crafting