SUMMON STATUS

Into the Backrooms TD Summon Rates & Pity

Summoning rare towers is official. The current rates, pool costs and pity rules are not publicly confirmed, so no numeric calculator is published yet.

Official systemRates need in-game checkChecked July 16, 2026

QUICK ANSWER

Do not calculate from an unknown rate

The official description confirms rare tower summons, but it does not expose a current probability table or pity policy.

A summon calculator can look precise while being completely wrong if one input comes from another game, an old banner, or a creator thumbnail. The result depends on more than a single percentage: the active pool, cost per pull, multi-pull discount, rarity distribution, featured-unit rate, pity threshold, whether pity carries between banners, and what resets the counter. None of those fields were verified on the checked public Roblox surfaces.

One current creator title associates an Electrician-like unit with 0.1%. That is a useful source-watch trigger, not an official rate table. Until the active banner shows the number and its conditions, do not use 0.1% to budget currency or estimate expected pulls.

WHEN THE TOOL CAN LAUNCH

Calculator release gate

The summon calculator will be safe to publish after a dated in-game capture or developer-controlled source supplies the current rate table, costs, pity mechanics, and pool rules. The implementation can then show expected pulls, the chance of at least one target after a chosen number of attempts, pity-adjusted outcomes, and a currency budget. Every result should identify the banner and checked date so an update cannot silently reuse stale inputs.

For now, use the reported codes page before spending, check named units in the unit index, and use the Team Builder with roles you have personally observed.

FAQ

Summon questions

What are the Into the Backrooms TD summon rates?

The public official Roblox surfaces checked do not list the current rates. Read the active in-game banner before spending.

Does Into the Backrooms TD have pity?

No official public pity threshold or reset rule was located. Do not assume a counter works like another tower-defense game.

Why is there no summon calculator yet?

A trustworthy calculator needs the actual rates, costs, pool contents, pity threshold, reset behavior, and banner rules.

Is the reported Electrician 0.1% rate official?

No. It appears in a creator title and still needs a dated in-game banner or official rate table.