Games like Fireworks Frenzy
Games like Fireworks Frenzy include Garry's Mod, Fireworks Mania - An Explosive Simulator, Brick Rigs, Teardown, and Scrap Mechanic. We matched them by the tags players give Fireworks Frenzy on Steam (Sandbox, Exploration, Choose Your Own Adventure, Physics, and Multiplayer): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Sandbox · Physics · Multiplayer

Fireworks Mania - An Explosive Simulator
Shared: Sandbox · Exploration · Multiplayer

Brick Rigs
Shared: Sandbox · Multiplayer · Building

Teardown
Shared: Sandbox · Physics · Multiplayer

Scrap Mechanic
Shared: Sandbox · Building · Multiplayer

People Playground
Shared: Sandbox · Physics · Building

Slime Rancher
Shared: Exploration · Sandbox · Cute

PEAK
Shared: Multiplayer · Exploration · Physics

Goat Simulator
Shared: Sandbox · Physics · Funny

Space Engineers
Shared: Sandbox · Building · Physics

RV There Yet?
Shared: Multiplayer · Physics · Exploration

Fun with Ragdolls: The Game
Shared: Sandbox · Physics · Funny

Goat Simulator 3
Shared: Sandbox · Exploration · Physics

Totally Accurate Battle Simulator
Shared: Sandbox · Physics · Funny

Mon Bazou
Shared: Sandbox · Exploration · Choose Your Own Adventure

BeamNG.drive
Shared: Physics · Sandbox · Simulation

Besiege
Shared: Sandbox · Physics · Building

Kerbal Space Program
Shared: Sandbox · Physics · Building

Terraria
Shared: Sandbox · Multiplayer · Exploration

R.E.P.O.
Shared: Multiplayer · Physics · First-Person

Kerbal Space Program 2
Shared: Sandbox · Exploration · Physics

House Flipper
Shared: Sandbox · Multiplayer · Building

Human Fall Flat
Shared: Sandbox · Physics · Multiplayer

Out of Ore
Shared: Sandbox · Exploration · Choose Your Own Adventure