Booster Pack Heroes Pack Drop Rates & Basic Pack Odds

What are the confirmed pack drop rates in Booster Pack Heroes?

This guide covers the evidence available on November 11, 2026, following the game’s November 10 Steam release. The official Steam listing confirms that release date and explains that individual packs have their own pools of heroes and spells.

The table below reproduces the reviewed tooltip values. It is an observed Basic Pack breakdown, rather than a developer-published probability database covering every pack and patch.

Basic Pack result	Displayed chance	Evidence
Squire	60%	Reviewed in-game tooltip
Barbarian	30%	Reviewed in-game tooltip
Ranger	9%	Reviewed in-game tooltip
Undiscovered result	1%	Reviewed tooltip; identity not established

These four entries total 100%. That supports reading them as the displayed distribution for this particular pack. It does not establish the probabilities for Advanced Packs, special variants, or other pack pools.

Keep the final entry unnamed until its identity is confirmed. A hidden result is not automatically an Interloper, a Foil, or a Giant. Those labels refer to separately documented features, and the available evidence does not connect them to the Basic Pack’s undiscovered slot.

For a collection target, the first useful check is its pack pool. A percentage from the Basic Pack cannot tell you how likely a different pack is to produce the hero you want.

Pack drop rates and odds: what does 1% mean?

A displayed 1% chance does not, by itself, promise a successful result within 100 attempts. A guarantee would require an additional rule, such as a documented pity system. No pity timer, guaranteed rare interval, or increasing chance after consecutive misses is verified in the reviewed material.

Probability calculations can still explain why long dry spells happen. The following table is a mathematical illustration, not confirmation of the game’s random selection system. It assumes independent rolls, each with an unchanged 1% success chance.

Independent 1% rolls	Calculated chance of at least one success
10	9.6%
50	39.5%
100	63.4%
200	86.6%
300	95.1%

The calculation is 1 - 0.99^n, where n is the number of independent rolls. These figures describe that model only; they should not be presented as verified pack-opening milestones.

At 100 rolls, the model still leaves approximately a 36.6% chance of seeing no success. Its expected waiting time is 100 rolls, but that average is not a deadline for an individual player. Even 300 rolls would not produce certainty under those assumptions.

This distinction matters when deciding whether an unsuccessful batch proves something is broken. Misses alone cannot establish a bug, a hidden penalty, or a changed drop rate. Equally, one unusually lucky batch cannot establish a higher underlying chance.

A useful record includes the pack name, displayed odds, game version, and number of openings. Keep results from different packs separate. Combining them would make your sample harder to compare with any one tooltip.

Advanced Packs, Foil, Giant, and Interlopers need separate evidence

When comparing pack drop rates and odds, distinguish the chance of receiving a particular unit from any modifier attached to that result. The reviewed notes identify Temple Foil and Barracks Giant as separate modifiers, but provide no complete numerical explanation of how either is calculated.

Advanced Pack information is also incomplete. A guide observation recorded in the reviewed notes lists Monk at 60% and Knight at 30%. That observation does not supply a fully verified Advanced Pack table.

Feature	What the available evidence supports	What remains unverified
Advanced Pack	A guide observation lists Monk at 60% and Knight at 30%	Complete pool and remaining probabilities
Temple Foil	Identified as a separate modifier	Numerical rate and calculation
Barracks Giant	Identified as a separate modifier	Numerical rate and calculation
Interlopers	Official demo update describes exceptionally rare heroes appearing from any pack	Exact percentage and equivalent retail behavior

Do not fill the Advanced Pack’s missing portion by copying the Basic Pack’s 9% and 1% entries. Two matching percentages are insufficient evidence that the rest of the distribution matches. Assigning names to that remainder would also go beyond the available information.

Similarly, there is no verified formula here for multiplying a unit’s chance by a Foil or Giant chance. Such a calculation would require numerical modifier rates and evidence about how the selections interact.

Interlopers have stronger official documentation, but that documentation is specifically about the demo. The official Next Fest demo update says opening any pack can exceptionally produce a random hero associated with packs in the full game.

The announcement supplies no percentage. Its qualitative rarity description cannot responsibly be converted into 1%, 0.1%, or another numerical rate. It also does not establish that retail packs use the same Interloper rules.

Official gameplay video

The launch trailer by Funday Games shows the game’s general pack-opening and tower-defense loop. It is a gameplay overview, rather than a demonstration of this guide’s specific objective.

Retail, demo, and patch details change how evidence applies

Version labels are essential when comparing pack drop rates and odds. The official launch announcement lists 10 booster packs and 40 units in the full game. It does not provide a probability table for those packs.

Those totals describe content scope. They do not establish equal distribution between packs, equal chances among units, or a universal rarity pattern.

Demo availability can also explain an apparently missing pack. In the Steam discussion about the final pack not appearing, community reports attribute the issue to a demo limitation: a player could finish the relevant quest while the Royal Pack itself remained full-game content. This is player experience, not an official retail drop-rate statement.

Patch information needs equally careful reading. The official patch 1.0.30D notes document a fix for an ungranted final relic-pack quest reward. They also say quest progress can continue after finishing acts 1 or 2.

Neither change establishes a new random pack probability. A missing quest reward and an unlucky opening are different problems.

The patch additionally makes the Foil version of the small spider spawned by the Spider Queen easier to find. That specific change does not establish a global increase to Foil chances from booster packs.

No mobile-specific probability table is established by the reviewed tooltip notes. Treat a matching game title as insufficient evidence that every build uses identical rates.

What to check before opening another batch

Use pack drop rates and odds alongside your current objective. The following recommendations follow from the documented pack pools, tooltip observations, and reported progression issues; they are not claims of a tested optimal farming strategy.

Your objective or problem	Useful next check	Reason
Find a specific unit	Confirm its pack pool and current displayed chance	Packs have separate pools
Identify the Basic Pack’s hidden entry	Keep its identity marked as unknown until confirmed	The reviewed tooltip leaves it undiscovered
Hunt a Foil or Giant result	Read the relevant modifier information separately	Base unit odds do not establish modifier odds
Investigate a frozen opening quest	Check chapter context and installed version	Community reports and patch notes describe progression issues
Find a missing pack or reward	Distinguish demo restrictions from a quest-reward problem	Both appear in the available evidence

For ordinary collection hunting, start with the pack’s current tooltip. Compare it with the observed table above, especially after an update. If the displayed numbers differ, record the version and conditions rather than assuming either table applies universally.

For progression, the official store description identifies Mastery upgrades and chapter bosses as routes toward greater power and new packs. A source-based recommendation is to review those available progression options when a rare-card hunt stalls, rather than assume the missing result is your only route forward.

Quest counters deserve their own check. In the Steam discussion about opening-pack quests, community reports describe counters stopping despite additional openings. Some players associated this behavior with replaying earlier chapters.

Those reports should be read alongside patch 1.0.30D’s specific act-related improvement. They do not prove that every frozen counter has the same cause or that every reported case was fixed.

If you document a problem, separate the opening result from the quest response. Record whether the pack produced a unit, whether the counter advanced, and which chapter was active. That makes a progression report more informative than describing the entire event as bad luck.

FAQ: pack drop rates and odds

What is the most complete confirmed pack table?

For pack drop rates and odds, the reviewed Basic Pack tooltip provides the clearest complete breakdown: Squire 60%, Barbarian 30%, Ranger 9%, and an undiscovered result at 1%. A complete table covering all retail packs is not verified in the available evidence.

Is the 1% result guaranteed after 100 packs?

No guarantee is established by the reviewed material. A 1% tooltip entry alone does not establish a pity timer. In an illustrative model with independent 1% rolls, 100 rolls produce about a 63.4% chance of at least one success, rather than certainty.

Are Interlopers the Basic Pack’s undiscovered 1% result?

That connection is unconfirmed. The official demo update documents exceptionally rare Interlopers from any pack, but supplies neither their exact probability nor evidence identifying them as the Basic Pack’s hidden entry. Keep the demo mechanic and the tooltip observation separate.

Does the Supporter Pack improve drop rates?

The official launch announcement describes the Supporter Pack as containing cosmetic items. It provides no evidence of improved unit probabilities, increased Foil chances, or a pity benefit. There is therefore no supported reason to purchase it for better pack odds.

Related guides

• Blacksmith: Royal Pack Conversion
• Barracks & Giant Pack Upgrades
• best packs to buy: Basic Packs, Boxes, and Value