Cores

Cores are the long-running modifiers of a Slotbound run. The official store description says they (together with Items) let you manipulate the odds, and that Core synergies are something you plan rather than stumble into.

This is not a complete Core list. The in-game Collection is. The achievement Core Collector is awarded for recording 100% of Cores. Official news has never published a full 1.0 table, so any named Core below is either quoted from a player tooltip or left as [verify in-game].

Official history (why old Core guides go stale)

The Core system has been rebuilt more than once:

v0.2.7 (16 July 2026): fixed the Core Selection screen locking up when you held more than 8 Cores, and fixed Cores that stopped activating after v0.2.5. That post is useful mainly because it confirms you can hold a large number of Cores — the exact 1.0 cap is [verify in-game].
v0.3.0 (23 July 2026): “almost complete rebuild.” Most previous Cores were redesigned or replaced. The developer’s stated goal was that each Core should noticeably change how you play.
v0.3.1: bugs related to Core activation.
v0.3.2: added a new Core, plus other balance work.
v0.4.0: many systems around Cores (items, traits, factions) changed again.

If a page still talks about pre-v0.3.0 Cores, ignore the names until you see them in 1.0.

What Cores do, in official language

Official posts never give a numeric slot count for 1.0. They do say Cores should:

change how the slot machine behaves (store and developer Reddit posts: focus symbols and paylines, or manipulate bad results)
create combinations that define a run
show up on a Core Selection screen (v0.2.7)

Whether you can unequip or delete a Core mid-run is a frequent player request (“can we delete some cores or traits?”) and remains [verify in-game].

Faction synergies are a related but separate system (v0.4.0, still described as beta at the time). Do not assume a Core tag and a faction bonus are the same thing.

Named Cores and reel effects from 1.0 players

Use these as search terms in your Collection, then believe the tooltip.

Wildcard. A Steam 1.0 thread asked whether this Core is bugged. The player quoted a tooltip of 2% chance to roll joker, and said they had not seen a joker from it, while Joker Seed felt more consistent. Both the 2% figure and the intended interaction are [verify in-game]. If you test it, write down the build ID from patch notes.

Joker Seed. Mentioned in the same thread as a more noticeable way to see joker / Jester-related symbols. Effect size is [verify in-game] — some demo-era pages claim a specific per-cell percentage; we are not repeating a number we cannot source officially.

Neither name appears in official news posts. Spelling should be copied from your tooltip, not from this sentence.

How to choose Cores without a fake tier list

Read the tooltip twice — once for the headline effect, once for the condition (only on jackpot, only for a family, only after a Judgment, and so on).
Pick a direction for the reels (more of one symbol, more lines, more nudges, more economy) before you pick raw damage. Official design intent is that Cores change the machine, not only unit stats.
Do not hoard contradictory Cores just because they are rare. A 1.0 player complaint is that some Cores and traits feel like dead weight with no delete option.
Re-check after promotions. Official v1.0.0 (5) fixed some unit skills not triggering. A Core that “does nothing” might be a bug, a misunderstood condition, or a patched build. Update first.
Collection first, wiki second. Fill Core Collector by opening every new Core; do not wait for a fan list.