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Alliance Tower Defense Guide

Units and the Summon system

Quick answer

Units come from one place: Coins earned in matches go into Summon, and the result is equipped through the lobby's Units menu. The x2 LUCK! pass at 199 R$ is the giveaway that pulls are chance rolls, so spend on volume first and test one change at a time.

The Roblox description states the loop in a single line — earn Coins in matches, spend Coins on Summon to get a strong unit, equip your team with units — and the panel itself prices the roll at 100 Coins for one summon and 850 for ten.

This page covers how the system is put together and how to spend on it without wasting a session's worth of Coins.

The lobby Units area where owned units are inspected and equipped

The loop, in order

  1. Earn Coins in matches. Defense pays out as waves clear. Longer modes pay more per run, which is why Easy is the wrong place to grind forever.
  1. Spend Coins on Summon. Coins leave your account and a unit comes back. This is the only conversion the game advertises.
  1. Equip the unit into your team. The Units menu is where a pulled unit becomes a unit you actually field.
  1. Repeat with a harder mode. The badge ladder — Easy, Medium, Hard, Insane, CRAZY — is also a Coins-per-hour ladder.

Summons are a chance roll, and the game sells the odds knob

The gamepass list is the clearest evidence for how summoning works. Alongside a Coins doubler and a speed doubler there is a pass literally named x2 LUCK! at 199 R$. A luck multiplier only means something if the pull is a chance roll — so treat every Summon as a roll against a table you do not control.

GamepassPriceWhat it changes about summoning
x2 LUCK!199 R$Doubles luck — the pull-quality multiplier
x2 COINS!99 R$Doubles Coin earn, so more rolls per hour
x2 Game Speed149 R$Doubles game speed, so more waves per hour
VIP PASS299 R$The bundle pass

In-match unit panel showing owned units and their levels

What the Summon panel shows you

The summon screen is where the system stops being abstract. Read off the in-game panel in public runs:

Element on the summon panelValue seen
Summon x1100 Coins
Summon x10850 Coins
Drop-rate column, six rarity rows41.9% · 29.4% · 16% · 8.4% · 4% · 0.4%
Rarity progress countersLegendary 16/100 · Mythic 258/1000
Luck readoutYour Luck: x4
Per-rarity Auto SellAn On/Off toggle on every row

Three things follow from that panel. Ten-pulls are cheaper per unit — 850 Coins for ten against 1,000 for ten singles — so a x10 is the baseline spend rather than the treat. The top rarity is genuinely rare: the ladder bottoms out at 0.4%, and the counters beside Legendary and Mythic run to 100 and 1,000 pulls, which is the game showing you how long a dry streak can run before it pays out. And luck is a visible multiplier — the panel prints it and the x2 LUCK! pass doubles it.

Reading a unit without an official stat sheet

Roblox publishes no per-unit stat table for this game, so the honest way to compare what you have is a repeatable test rather than a tier list copied from somewhere else.

  1. Run the same mode twice with one unit swapped in and nothing else changed.
  1. Watch the wave counter, not the damage numbers. The useful question is "which wave did I stop holding", because that is the wave where your defense actually failed.
  1. Note the upgrade price shown in the HUD. A unit that is cheap to bring online earns its slot even if its numbers look smaller.
  1. Keep one variable at a time. Swapping two units and changing the map teaches you nothing.

Common mistakes with Coins and Summon

  • Summoning one at a time when you can bank 850. A x10 costs 850 Coins against 1,000 for ten singles — and the luck pass exists precisely because pulls are rolled.
  • Equipping everything you pulled. Slots are limited; a bench of untested units is not a team.
  • Farming Easy forever. The longer modes are the Coins engine: 20, 30, 40, 50 and 60 waves.
  • Buying a luck pass before a Coins pass. If you cannot afford both, more Coins means more rolls; more luck only improves rolls you already paid for.

Where the units page goes next

Once you have a squad worth fielding, the loadout question — what the team is for and how it sits on a map — is on the teams and loadouts page. If the Coins are the bottleneck rather than the team, start with Coins, farming and long-term goals.