Undertale Adventures Guide: How a match works
About
OverviewUndertale Adventures is a tower defense game on Roblox where you place Undertale characters as units to stop waves of monsters from reaching your base. Up to 25 players can defend together, and clearing stages earns you resources to level up your units and sharpen their traits.
What is on this page
Contents
How a match works
Step
Every stage puts you and up to 24 other players on a map where monsters advance toward your base. You place Undertale characters at positions on the map to intercept them. Enemies arrive in waves, and once you clear all of them the stage ends and rewards are handed out.
- Join a stage find a room with space, since each room holds up to 15 players at once.
- Place your units set your Undertale characters on the map before and between waves to cover the enemies' path.
- Collect your rewards finishing the stage gives you money and Souls used for upgrading and summoning.
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Growing your units
Tips
Resources you earn from cleared stages feed into two separate upgrade tracks. Leveling raises a unit's base stats, while trait upgrades push the character's unique abilities further.
- Level up a unit to improve its core performance across every fight.
- Check the summoning screen for the exact currency name and amount before spending Souls — some similarly named materials are not the same thing.
Currency at a glance
Table
The game uses two main currencies. Knowing which screen each one belongs to stops you from running dry at the wrong moment.
| Money | earned by defeating enemies during a stage; used to place and upgrade units mid-fight. |
| Souls | accumulated from stage-clear rewards; spent on the summoning screen to unlock new units. |
| Summoning screen | always confirm the exact currency name and the amount required before you confirm a summon. |
Glossary
Glossary- Unit
- An Undertale character you place on the map to attack incoming enemies.
- Wave
- A single group of enemies that advances toward your base; a stage is made up of multiple waves.
- Soul
- A stage-reward currency used on the summoning screen to unlock new units, separate from the money earned mid-battle.
- Range
- The distance from which a unit's attacks can hit enemies; check it before finalizing any placement.
- Reroll
- Spending materials to randomize a unit's trait again when you want a different result, with no guarantee of an improvement.
Common questions
FAQDo I need to know the Undertale story to play?
No prior knowledge of the Undertale narrative is required to play. Focus on each unit's attack style and placement cost rather than its story background.
How many players can join one stage?
Each room holds up to 15 players at once, and a single stage can involve up to 25 players in total. Larger groups put more units on the map, making tough waves easier to survive.
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