Booster Pack Heroes takes at least 7 hours to beat, by the developer’s own estimate: the full game has 14 chapters, and how fast you get through them depends on your luck with packs and how hard you push. Going for every achievement, which means every relic, every foil card and every monster in its foil form, adds a stretch of grinding on top of that.
Booster Pack Heroes is an incremental tower defense game from zup games, the one-person studio of board game designer Jordy Adan (best known for the Kennerspiel des Jahres nominee Cartographers), published by Funday Games. It launched on November 10, 2026. Here is how the game is laid out, what speeds you up, and what the full achievement list involves.
How Long Booster Pack Heroes Takes
The developer’s launch announcement lists the full game as “14 chapters (at least 7 hours of play time depending on your luck and speed).” That is the number to plan around for reaching the ending.
| Goal | What to expect |
|---|---|
| Reach the ending | At least 7 hours, per the developer, shorter on a fast and lucky run |
| One sitting | The game’s itch.io page puts an average session at about an hour |
| Every achievement | More on top: the relic and foil achievements are the slow ones |
Luck matters more here than in most games of its length, which is why the developer’s estimate hinges on it. Every pack is a draw from its own pool of heroes and spells, and the heroes you pull shape how each tower defense round goes.
How the Game Is Laid Out
The launch announcement gives the size of the full game: 10 booster packs with 40 units to pull, over 500 upgrades, and 40 relics to combine. Steam’s achievement list shows the shape of the game around those 14 chapters:
- The first chapters. Achievements cover completing chapters 1, 2 and 3 (named Drums in the Dark, Eyes without Hunger and The witch from the Abyss).
- Prestige runs. Further achievements cover completing chapters 1 to 4 on prestige 1 and on prestige 2, so you replay the chapters at higher prestige. The prestige door opens from the skill tree; patch 1.0.30D added an arrow in the tree that points to it once it can be opened.
- The planes. Beyond the tower are four planes: Nature, Death, Frost and Chaos, each with its own completion achievement. The list also tracks opening a first door, a second door and, last, the rift to the Plane of Chaos.
The “The End” achievement is awarded for completing the game. Patch 1.0.30D also lets you keep playing acts 1 and 2 after finishing them, with quests still progressing, so finishing an act no longer locks you out of its leftover quests.
What Speeds You Up
The core loop is the same from the first chapter to the last: open packs, defend the tower against waves of monsters, earn Mastery, and spend it on upgrades. Every run feeds the next, so a chapter that stops you cold usually falls after one or two more rounds of upgrades. Defeating each chapter’s boss unlocks new booster packs, heroes, spells and challenges.
A few things keep a run moving:
- Spend Mastery every time you return to the tree. It upgrades your heroes and spells and unlocks new abilities, and those upgrades are what carry you through the next chapter.
- Stay on the latest patch. Patch 1.0.30D fixed an integer overflow bug that left some saves unable to buy more upgrades, and patch 1.0.35D fixed a softlock when you opened a pack holding a new unit and died at about the same moment.
- Expect the late planes to be kinder than at launch. The 1.0.30D patch weakened enemies in the Plane of Death and cut how much health heroes lose in the last stage of the Frozen Plane’s blizzard.
What 100 Percent Adds
Booster Pack Heroes has 37 Steam achievements. Most fall naturally on the way to the ending, but a handful are long grinds:
| Achievement | Requirement |
|---|---|
| Museum Curator | Discover every relic |
| Hall of Holos | Discover every foil hero and tome |
| Prismatic Bestiary | Defeat every monster in its foil form |
| Pack Bohnanza | Open 1,000 packs |
| No One Gets Through | Defeat 10,000 monsters |
| Out of Place | Discover an interloper |
Interlopers are the rarest pulls: the developer describes a “super-rare chance” for any pack to drop a hero from one of the other packs. For the foil monster achievement, the 1.0.30D patch made the foil version of the small spider the Spider Queen spawns easier to find.
Several of these achievements did not unlock properly at launch. The developer released fixes the same night and told players on the official forum that restarting into version 1.0.30D should sort out missing achievements. If one still refuses to pop, check that your game is up to date before grinding further.
If Booster Pack Heroes is your kind of number-goes-up game, our Task Bar Hero guides cover another idle game that rewards the same patience. The game’s demo was part of the October Steam Next Fest, and our list of the best PC games of 2026 has bigger picks if you finish it in a weekend.
Frequently Asked Questions
How many chapters does Booster Pack Heroes have? The full game has 14 chapters, according to the developer’s launch announcement.
Can you beat Booster Pack Heroes in one day? It is possible, since the developer puts the main game at about 7 hours or more. Most people will finish it over a few sessions.
How many achievements does Booster Pack Heroes have? 37. The slowest are Museum Curator (every relic), Hall of Holos (every foil hero and tome) and Prismatic Bestiary (every monster in foil form).
Can you keep playing after finishing an act? Yes. Since patch 1.0.30D you can keep playing acts 1 and 2 after finishing them, and their quests keep progressing.
Is Booster Pack Heroes on mobile too? Yes. It launched on iPhone and Android on November 10, 2026, the same day as the Steam version.