Games listed 42,782
Game guide

+1 Size Per Step Guide: The basic loop

+1 Size Per Step
Become BIG, Playing 1.2K, Rating 91.5%
Creator Become BIG
Playing 1.2K
Rating 91.5%
Is this game fun?
No votes yet. Cast the first one.

About

Overview

+1 Size Per Step is a Roblox simulator where every step you take makes your character physically bigger. You grow, smash through enemies and bosses, unlock new areas, and race to become the largest player in the room.

What is on this page

Contents
01

The basic loop

Step
In short Every run follows the same rhythm: walk to grow, then crash into enemies and bosses to clear the stage.

The game's core mechanic is simple — walking automatically increases your size with every step. Once you're big enough, you take on enemies placed around the stage by running into them. Bosses work the same way, but you need to be large enough before you try. Clearing a boss opens up the next area.

  1. Build size stay in motion and cover as much of the stage as you can to rack up steps.
  2. Find enemies approach the enemies scattered across the stage and collide with them.
  3. Check the boss size yourself up against the boss before committing; if it looks bigger than you, keep walking first.
  4. Hit the boss once you're large enough, run into the boss to defeat it and advance to the next area.
Ask on the board
02

Auras and trails

Table
In short Auras and trails are purely cosmetic rewards for clearing stages.

As you clear stages, you unlock two types of visual customisation. Neither auras nor trails affect your size or strength — they exist entirely for self-expression.

Auraa glowing effect that surrounds your character, unlocked by clearing stages.
Traila visual effect that appears behind you as you walk, also earned through stage progression.
Effect on gameplaynone; both are decoration only.
03

Playing with others

Summary
In short Up to ten players share a room, so you're always competing against real people for the top spot on the size leaderboard.

A single room holds up to ten players at once, all growing and competing in the same space. A ranking shows who currently holds the biggest size, giving you a clear target to chase.

  • Room size up to ten players per room.
  • Leaderboard shows which player is currently the largest.
  • Goal become the biggest player in the room.

Glossary

Glossary
Step
A unit counted each time you move; accumulating steps is what makes your character grow larger.
Boss
A powerful enemy at the end of a stage that you defeat by colliding with it once you are big enough.
Aura
A glowing visual effect around your character unlocked by clearing stages, with no effect on gameplay.
Trail
A visual effect that appears in your footsteps as you walk, earned through stage progression.

Common questions

FAQ

How do I get bigger?

Walk — every step you take adds to your size automatically.

I can't beat the boss. What should I do?

Walk away from the boss and keep moving around the stage to build more size. If the boss looks larger than you, keep walking first before challenging it.

Do auras and trails make me stronger?

No — both are cosmetic only and have no effect on your size or strength.

How do I reach the top of the leaderboard?

Become the biggest player in the room by accumulating more steps than the other players.

Updated Sep 28, 2026
Game updates can change what is on this page. If you spot something, get in touch and let us know.
+1 Size Per Step Become BIG, Playing 1.2K, Rating 91.5%
See the game pageAsk on the board
Add it to your home screen and it works like an app. One tap to open, and it loads faster after that.