How to Make a Stamina System in UE5 Blueprints
Stamina is the economy that makes sprint, dodge and attack feel like decisions. Mechanically it’s a float with a drain/regen loop — the design lives in the regen delay and what happens at zero.
What it’s made of
Variables
Stamina/MaxStamina floats, RegenRate and RegenDelay floats, a bIsExhausted bool for the zero-state, and per-action costs (DashCost, AttackCost).
Events
Actions call a TryConsumeStamina function; a looping regen timer restores; taking any stamina action resets the regen-delay timer.
The logic
TryConsumeStamina(cost): Branch on Stamina >= cost → subtract and return true, else false (actions gate themselves on the return). Regeneration: only after RegenDelay since the last spend, add RegenRate per timer tick, Clamp at max. At zero, set bIsExhausted — optionally force-cancel sprint and block actions until a recovery threshold (not just above zero) to prevent stutter-spending.
Key nodes you’ll wire
The mistake that breaks it
Letting regen start the same frame the spend happens — without the delay reset, stamina visually vibrates and gating never quite triggers.
New to how Blueprint systems fit together? Read the anatomy of a Blueprint system first.
Or skip the wiring — generate it
BlueprintStudio builds this system from a plain-language prompt — the right nodes, exec and data pins wired, defaults set — and tells you whether it is ready to paste or what to set up first. The prompt is prefilled:
Build “Stamina System” in BlueprintStudioPrompt variations to try
Paste it into your Blueprint, or apply it with the free Cosindra desktop app (Windows & macOS).
Common questions
How do I reset the regen delay every time stamina is spent?
Run two timers. TryConsumeStamina calls Clear and Invalidate Timer by Handle on the regen loop, then sets a one-shot timer for RegenDelay whose event starts the looping regen timer. Every spend kills and re-schedules the pair, so regeneration only ever begins RegenDelay seconds after the last action — the pause-then-refill rhythm players know from Souls games.
When does stamina deserve its own Actor Component?
The moment more than one actor spends it — enemies with their own stamina, mounts, a co-op partner. A StaminaComponent owns the floats, exposes TryConsumeStamina, and fires OnStaminaChanged; sprint, dash, and attack all draw from one pool without knowing about each other. For a single player character, plain variables on the character Blueprint are perfectly fine.
Why shouldn’t the stamina bar use a property binding?
Widget property bindings evaluate every frame whether the value moved or not — dozens of getter calls per second for a bar that changes in bursts. Bind a custom event to OnStaminaChanged instead and call Set Percent with Stamina / MaxStamina only when a spend or regen tick actually happens. Same visual result, near-zero idle cost, and the pattern scales to every HUD element.