The 2024e of D&D changed the mechanics of exhaustion in the new Players Handbook. I have altered this further to be a little more punishing/balanced. The table below is the new rules:
| Exhaustion Mechanics | < | < | < | < |
|:--------------------:|:---------:|:--------:|:------:|:------:|
| Level | D20 Rolls | Spell DC | Speed | HP Max |
| 1 | -2 | -2 | -5 ft | -10% |
| 2 | -4 | -4 | -10 ft | -20% |
| 3 | -6 | -6 | -15 ft | -30% |
| 4 | -8 | -8 | -20 ft | -40% |
| 5 | -10 | -10 | -25 ft | -50% |
| 6 | Death | Death | Death | Death |