Undertale Battle Maker Android May 2026

Most Android battle makers have a stats menu. Input:

Let’s assume you are using a dedicated fan-app like Souls Tab or a lightweight Unitale port. Follow these steps to go from zero to final boss.

Here is a basic template you can paste into your code editor to create a battle engine on Android. undertale battle maker android

Create a file named main.lua:

function love.load()
  -- LOAD ASSETS
  player =  x = 300, y = 400, img = love.graphics.newImage("sprites/heart.png") 
  enemy =  x = 300, y = 150, img = love.graphics.newImage("sprites/sans.png")
-- BULLETS TABLE
  bullets = {}
  timer = 0
end
function love.update(dt)
  -- PLAYER MOVEMENT
  speed = 200
  if love.keyboard.isDown("left") then player.x = player.x - speed * dt end
  if love.keyboard.isDown("right") then player.x = player.x + speed * dt end
  if love.keyboard.isDown("up") then player.y = player.y - speed * dt end
  if love.keyboard.isDown("down") then player.y = player.y + speed * dt end
-- SPAWN BULLETS (ATTACKS)
  timer = timer + dt
  if timer > 0.5 then
    table.insert(bullets,  x = math.random(0, 600), y = 0, speed = 150 )
    timer = 0
  end
-- MOVE BULLETS
  for i, b in ipairs(bullets) do
    b.y = b.y + b.speed * dt
    -- Remove bullets off screen
    if b.y > 800 then table.remove(bullets, i) end
  end
end
function love.draw()
  -- DRAW ENEMY
  love.graphics.draw(enemy.img, enemy.x, enemy.y)
-- DRAW PLAYER (HEART)
  love.graphics.draw(player.img, player.x, player.y, 0, 2, 2) -- Scale 2x
-- DRAW BULLETS
  for i, b in ipairs(bullets) do
    love.graphics.circle("fill", b.x, b.y, 5)
  end
end

Timeline:

Balance notes:

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Battles are saved as .utb files in the device’s internal storage. You can share these files via email, Discord, or cloud drives. Some community hubs even host monthly “battle jams” where creators submit 5–10 enemy encounters for others to play. Most Android battle makers have a stats menu

Best for: Making a real game with custom menus, stats, and complex attacks.

If you want to make a real fangame (like Undertale Yellow or Unitale battles) on your phone, you need a game engine. The best engine for Undertale clones on Android is Love2D (LÖVE). Timeline:

Toby Fox is famously supportive of fan-games. He has stated in the Undertale 5th Anniversary livestream that he loves seeing fan creations, provided they are free.

Danger Zone:

Best for: Making quick memes, short animations, or simple boss battles without coding.

There are several apps on the Google Play Store designed specifically for Undertale fan games. These are often called "Battle Simulators."