The Voidcaller is a recovery and support choice with healing, barriers and debuff tools. Its value depends on keeping the right action available when the party needs it, rather than spending every round on damage.
Make recovery explicit
The developer’s class explanation identifies healing as part of the Voidcaller’s role. In the current player guide, Void Mend is the main recovery action to inspect. Its description can change as it is upgraded, including which conditions it removes.
Read the current rank’s full text. A skill that heals does not automatically cure every status, revive a fallen hero or restore all resources.
Before spending a turn
- Check which hero is at immediate risk.
- Inspect that hero’s status icons and the healing skill’s current cure description.
- Compare available mana with the cost of the action.
- Heal or apply protection when that answers the immediate threat.
- Use an offensive action only after checking what recovery may be needed next.
The guide describes an attack that bypasses enemy defenses, but names differ across older retellings. Use the action visible in your skill panel rather than assuming that every source’s spell name matches your build.
Check aura rules
The player guide reports limits on simultaneously active auras and describes changes on level-up. Treat those as current-guide reports, not proof of an unrestricted aura switching menu in every version. Read the skill panel before investing around multiple effects.
Party support has limits
A healer cannot compensate for every reach mistake, empty food supply or repeated status effect. Pair the support role with usable attacks elsewhere in the party and sensible rest opportunities. Exact healing amounts, aura scaling and an optimal support build are not independently tested here.
Sources & version notes
Mechanics are reported in the original player guide; developer sources support the broader system. This is not an independent verification of every tooltip or balance value.
- VoidEngineer — original Underkeep Player’s Guide (updated 2026-11-08; checked 2026-11-09)
- News from Underkeep: Classes, Races & Skills (2025-11-04)
- Underkeep Steam store — app 2411200 (checked 2026-11-09)
Compiled from public sources. We have not personally played or tested these procedures. Check your installed build and its tooltips when details differ.