Undertale Tower Defense Script May 2026

Look for "Undertale Engine" templates. Often, these include a "Survival Mode" that functions identically to a TD game. The obj_heart collision script can be repurposed for tower targeting logic.

In the context of Roblox, a "script" usually refers to code injected into the game client to automate actions or manipulate the game's memory. Since Undertale TD relies on grinding for Souls (currency), XP, and units, players often use scripts to farm resources automatically while they are away from the keyboard (AFK).

Use search strings like "Undertale" "Tower Defense" .gml or "UT TD" .lua. undertale tower defense script

Here’s a simple wave spawner you could adapt:

local waves = 
    [1] =  "Froggit", "Froggit", "Whimsun" ,
    [2] =  "Papyrus", "BlueAttack" ,
    [3] =  "Mettaton", "Mettaton", "RatingBot"
function startWave(num)
for _, enemyName in pairs(waves[num]) do
local enemy = spawnEnemy(enemyName)
enemy:moveToPath("path_Ruins")
end
end
 Look for "Undertale Engine" templates

Your wave script needs iconic enemies: Froggit, Whimsun, Papyrus, Mettaton. Each should behave differently. Your wave script needs iconic enemies: Froggit ,

| Enemy | Behavior | |-------|----------| | Froggit | Changes route if spared too many times | | Papyrus | Spawns “blue attacks” that freeze towers | | Mettaton | High HP, but takes extra damage during “rating” moments | | Flowey | Revives fallen enemies unless a “Soul Tower” is nearby |

Create a file named undertale_tower_defense.py.

import pygame
import sys
import random
# Initialize Pygame
pygame.init()
# Screen dimensions
SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
# Title of the window
pygame.display.set_caption("Undertale Tower Defense")
# Colors
WHITE = (255, 255, 255)
RED = (255, 0, 0)
# Enemy properties
ENEMY_SIZE = 50
enemies = []
# Tower properties
TOWER_SIZE = 50
towers = []
class Enemy:
    def __init__(self):
        self.x = 0
        self.y = random.randint(0, SCREEN_HEIGHT - ENEMY_SIZE)
        self.speed = 2
def move(self):
        self.x += self.speed
def draw(self):
        pygame.draw.rect(screen, RED, (self.x, self.y, ENEMY_SIZE, ENEMY_SIZE))
class Tower:
    def __init__(self, x, y):
        self.x = x
        self.y = y
        self.range = 100
        self.damage = 1
def draw(self):
        pygame.draw.rect(screen, (0, 0, 255), (self.x, self.y, TOWER_SIZE, TOWER_SIZE))
def main():
    clock = pygame.time.Clock()
while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                sys.exit()
            elif event.type == pygame.MOUSEBUTTONDOWN:
                # Simple way to add towers by clicking
                towers.append(Tower(event.pos[0], event.pos[1]))
            elif event.type == pygame.KEYDOWN:
                if event.key == pygame.K_SPACE:
                    enemies.append(Enemy())
screen.fill(WHITE)
for enemy in enemies:
            enemy.move()
            enemy.draw()
            if enemy.x > SCREEN_WIDTH:
                enemies.remove(enemy)
for tower in towers:
            tower.draw()
            # Simple range display
            pygame.draw.circle(screen, (0,255,0), (tower.x + TOWER_SIZE//2, tower.y + TOWER_SIZE//2), tower.range, 2)
pygame.display.flip()
        clock.tick(60)
if __name__ == "__main__":
    main()