Encounter Lab actually simulates combat — multiattack, legendary actions, concentration breaks, opportunity attacks, the whole action economy — then tells you the real party win rate.
Every tactical detail the books care about, modeled in code.
Multiattack, legendary actions, recharge abilities, AoE geometry, concentration saves, opportunity attacks, death saves. Not XP-budget math.
Standard 5-PC adventuring party, or roll your own with point buy / heroic arrays. Class loadouts include the spells they'd actually prepare.
Every 2024 SRD creature with tactics, recharge timing, and legendary action priorities derived from the stat block.
Full editor for traits, actions, bonus actions, reactions, legendary actions, and spellcasting. Saved to your account.
Watch any saved battle play out round-by-round on a tactical map, or step through it event-by-event with action bubbles.
Win rate, average rounds, survivors, casualties — aggregated across 100+ runs so one freak crit doesn't fool you.
Because XP-budget math doesn't model the fight.
Sign in with your DM's Toolkit / RealmEngine account — no separate signup needed.
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