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Game guide

Just Build — Getting started in your base

Just Build!
Awesome Fun Games, Playing 275, Rating 95.1%
Creator Awesome Fun Games
Playing 275
Rating 95.1%
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About

Overview

Just Build! is a free-form creative game where you place and color blocks to construct whatever you can imagine. This guide covers the basics of building, working with friends, and fixing common problems so you can spend more time creating and less time confused.

What is on this page

Contents
01

Getting started in your base

Step
In short When you join the game, your base is already waiting for you.

When you join the game, your base is already waiting for you. Walk around it to get a feel for how much space you have, then open the menu and try placing a block or two. Changing a color or removing what you just placed teaches you how the tools respond.

  1. Walk the base take a lap around your starting area to understand how much room you have to work with.
  2. Open the block tool find it in the menu and place a test block somewhere out of the way.
  3. Try the color tool change the test block's color a few times to see how the options work.
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02

Picking a theme before you build

Tips
In short Deciding what you want to build before you place a single block keeps your finished work looking deliberate.

A quick decision — a castle, a school — gives every block a purpose. Build the rough shape first, then go back and add detail and color once the structure feels right.

Tips worth knowing
  • Rough out the basic shape with plain blocks before you worry about colors.
  • Swap color combinations once the shape is done — a single color change can completely transform how a build looks.
03

Inviting friends and building together

Check
In short Getting a friend into your base takes only a minute, and every change is visible to everyone in the room instantly.

Just Build! lets multiple players work in the same base at the same time, and every change is visible to everyone in the room instantly. Use the invite feature in the menu — you can enter a friend's username directly or share an invite code.

  • Has your friend logged into Roblox before you send the invite?
  • Did you share the invite code correctly codes can expire, so generate a fresh one if the first attempt fails.
  • Have you agreed on who builds which section so no one accidentally works over someone else?
  • Have you agreed not to touch any part that is already finished?
04

Fixing common building problems

Warn
In short Most building problems come down to the wrong tool being selected or the camera sitting at a bad angle — check those two things first.

When a block does not land where you expected, or a button stops responding, the cause is almost always something simple. Run through these checks before you assume something is broken.

Worth watching out for
Wrong tool selected double-check the menu to confirm you have the placement tool active, not the delete or color tool.
Block hidden by the camera rotate your view to several angles before deciding a block is missing.
Too many blocks slowing the game remove some blocks in a dense area and see if performance improves.
Unresponsive menu button try selecting a different tool and then switching back to the one that was not working.
05

Autosave and keeping your base tidy

Summary
In short Autosave means you never lose work, but a base that keeps growing needs occasional tidying to stay enjoyable.

Every change you make is saved automatically, so there is no save button to hunt for and no risk of losing hours of work.

  • Autosave all changes are stored automatically with no action needed from you.
  • Exiting close the game through the menu rather than forcing it shut.
  • New ideas test fresh designs in an empty corner of the base, away from anything you want to keep.
  • Review occasionally walk the whole base and remove or fix sections that no longer fit the plan.

Glossary

Glossary
Base
The space that belongs to you when you join the game — it is where all your building happens.
Invite code
A short code you share with a friend so they can join your base directly.
Block tool
The menu option that lets you place new blocks in your base.
Autosave
A feature that saves every change to your base automatically so you never have to press a save button.
Respawn point
The location inside your base that you return to when you use the respawn option from the menu.
Collaborative building
Working in the same base as one or more friends at the same time, with all changes visible to everyone instantly.

Common questions

FAQ

My friend can't get into my base even though I sent an invite — what should I do?

First confirm your friend is logged into Roblox. Invite codes can expire, so generate a new one and send it again rather than resending the original.

The game is getting really slow while I build — how do I fix it?

A very large number of blocks in one area can slow things down. Try removing some blocks you do not need, or move to a different part of the base. Restarting your device can also help if the slowdown is severe.

A friend deleted part of my build — is there any way to get it back?

Check whether the game offers any undo option in the menu. Talk to your building partners about which sections are off-limits before you start.

Do I need to spend Robux to build freely?

No — blocks and colors are available without spending anything, and inviting friends to your base is also free.

Updated Oct 4, 2026
Game updates can change what is on this page. If you spot something, get in touch and let us know.
Just Build! Awesome Fun Games, Playing 275, Rating 95.1%
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