Since the Actual Pit-Stop Update, ordinary floors spend a point budget. They do not add one entity on a fixed floor ladder. Boss floors ignore the budget.
Costs
| Points | Entities |
|---|---|
| 1 | Drone, Grappler, Shrieker |
| 2 | BSoD, Gazer, Lungwort, Lurker, Mimic, Projected, The Salesman, Smile, The Witness |
| 3 | Channel, Teratoma, Warden |
| 4 | Apollyon, Bullseye, Console, The Dealer, Jack-O-Bomber, The Twins |
| None | The Hat Man, The Joker, The Timekeeper, Eris |
Hat Man, Joker, and Timekeeper do not spawn on a normal budget. Eris is the exception and can appear naturally. In Hard Mode, Eris can show up as early as Floor 2.
Floor points
The budget starts at 2 and gains 1 every 6.25 floors, rounded down. After Floor 100 it gains 1 every 3.125 floors, rounded down.
- Up to Floor 100:
0.16x + 2, where x is the floor. - After Floor 100:
0.32x - 14.
Then adjust for map size: small -1, medium 0, large +1, huge +2. Floor 1 is always 0. Floors 2–4 are capped at one entity even if the formula is higher.
A medium Floor 10 has 3 points. That can be one Warden, a Mimic plus a Shrieker, or three Drones. Which legal pack you get is biased by a hidden entity weight. Luck changes the weight of The Salesman and of the unusual entities (Console, Smile, The Witness).
Extra budget
- Curse of the Infestation and the Infestation modifier each add +2. Infestation does not stack with Entity Repellant, which slows the formula and cuts money by 15%.
- Happy Hour adds +1 on every floor.
- Legacy Malfunction added +6. Do not assume the current Maintenance floor still uses that number.
Jack-O-Bomber is more common while its seasonal modifier is active, which the bestiary ties to October.
What the letters on the tier page mean
The tier board maps these costs onto S/A/B/C. It is the spawn budget, not a measured damage ranking and not an official list.