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Tower Lab Cores Guide
Choose a player core that reinforces the run's machine, starting items, and intended physics chain; Hazard Cores modify difficulty and should be treated separately. The Steam Early Access description lists 26 run-modifying player cores plus 14 Hazard
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Quick Answer
Choose a player core that reinforces the run's machine, starting items, and intended physics chain; Hazard Cores modify difficulty and should be treated separately. The Steam Early Access description lists 26 run-modifying player cores plus 14 Hazard Cores, for 40 total.
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Tower Lab Cores Guide
Quick Answer
Choose a player core that reinforces the run's machine, starting items, and intended physics chain; Hazard Cores modify difficulty and should be treated separately. The Steam Early Access description lists 26 run-modifying player cores plus 14 Hazard Cores, for 40 total.
Last Verified: 2026-09-05
Game Version / Build: Official upcoming information available on 2026-09-05
Main Answer
Choose a player core that reinforces the run's machine, starting items, and intended physics chain; Hazard Cores modify difficulty and should be treated separately. The Steam Early Access description lists 26 run-modifying player cores plus 14 Hazard Cores, for 40 total.
This page stays inside what the official store, developer updates, or current public build establishes. Exact statistics, hidden requirements, permanent rankings, and unreleased outcomes are not inferred from genre conventions. Where a detail remains unavailable, it is marked as not officially confirmed as of 2026-09-05.
Confirmed Mechanics
| # | Confirmed detail | Evidence trail |
|---|---|---|
| 1 | There are 26 player cores and 14 Hazard Cores in the stated Early Access roster. | Official Tower Lab Steam page |
| 2 | Five machines define run styles through starting items and real-time abilities. | Official Tower Lab updates and patch notes |
| 3 | Cores, physics cards, utility cards, towers, and traps are separate reward pools. | Official Tower Lab Steam page |
Steps
- Choose the machine and Choose the machine and identify its starting interaction.
- Select a player core Select a player core that strengthens that interaction or covers its failure.
- Add Hazard Cores only Add Hazard Cores only when evaluating the explicit risk modifier.
- Reassess after rewards change Reassess after rewards change the deck or tower roster.
After each step, check the visible state before spending another action or resource. That keeps a changed build, procedural layout, or failed attempt from turning one bad assumption into a full restart.
Requirements
- The current Early Access build
- Access to core selection
- A chosen machine or run plan
How to Check the Result
Confirm the named interface state, objective change, resource movement, roster change, or physical outcome described above. If the current build displays a different rule, keep the official page's broad system description but treat the live prompt as the current operational instruction. Do not substitute an old screenshot or an unlabeled third-party value for the active build.
Common Problems
- Problem: Do not count Hazard Cores as ordinary player bonuses.
- Problem: A core that is strong in isolation may not support the active machine or deck.
- Problem: Exact ranking is version-sensitive while Early Access balance is being tuned.
Related Guides
- Tower Lab Beginner Guide
- Tower Lab Physics System Explained
- Tower Lab Matter Economy Guide
- Tower Lab Tower Interactions and Combinations
- Back to the Tower Lab game hub
Sources
Requirements
- The current Early Access build
- Access to core selection
- A chosen machine or run plan
Steps
- 1
Step 1
Choose the machine and identify its starting interaction.
- 2
Step 2
Select a player core that strengthens that interaction or covers its failure.
- 3
Step 3
Add Hazard Cores only when evaluating the explicit risk modifier.
- 4
Step 4
Reassess after rewards change the deck or tower roster.
Common Mistakes
- Do not count Hazard Cores as ordinary player bonuses.
- A core that is strong in isolation may not support the active machine or deck.
- Exact ranking is version-sensitive while Early Access balance is being tuned.
How this answer was checked
Sources & Verification
- Official Tower Lab Steam pageofficial
- Official Tower Lab updates and patch notespatch notes
More verified answers
Related Guides
Tower Lab Matter Economy Guide
Matter funds the run's building and upgrade decisions, and the economy is tied to mass knocked off. The June demo patch changed Conversion Field to double Matter earned for one wave, so treat old instant-Matter advice as obsolete and check the current card text.
Verified guideTower Lab Tower Interactions and Combinations
Build combinations around real collisions: bounce Mine Tower mines from the Deflector panel, move Bomb Tower projectiles with Fan Towers, and shrink enemies to make them easier to push. These are confirmed interactions, not scripted combo bonuses.
Verified guideTower Lab Campaign, Endless, Puzzle, Arcade, and Sandbox Modes
Use Campaign for the three-region roguelite deckbuilding progression, standard Arcade for classic tower defense, Endless for a procedurally expanding survival run, Puzzle for optimization challenges, and Sandbox/Level Editor for building and sharing Workshop levels.
Verified guide