Echolocation
The swarm can't use its Blindsight while Deafened.
Swarm of Bats 5e reference with CR 1/4, type, stat block details, token resources, terrain tools, fear hooks, and monster hunt generation.
A swirling cloud of tiny bats with leathery wings and squeaking cries. They flap erratically, their beady eyes glint in the dark, and together they form a churning mass.
Quick 5e Answer
Swarm of Bats is a CR 1/4 beast for D&D 5e. This page includes AC 12, HP 22 (5d8), a ready stat block, a downloadable PDF, and connected encounter tools.
Official SRD 5.2.1 Stat Block
Medium, Swarm of Tiny Beasts, Unaligned
This stat block uses official SRD 5.2.1 content under CC-BY-4.0 attribution.
The swarm can't use its Blindsight while Deafened.
The swarm has Advantage on Wisdom (Perception) checks that rely on hearing.
The swarm can occupy another creature's space and vice versa, and the swarm can move through any opening large enough for a Tiny bat.
Melee Attack Roll: +4, reach 0 ft. Hit: 5 (2d4) Piercing damage, or half damage if the swarm has half its Hit Points or fewer.
Base + optional customizer
Base + optional customizer
Note: These resource links work best when you are logged in to ChatGPT in your browser.
Swarm of Bats 5e reference: CR 1/4 beast, AC 12, HP 22 (5d8), PDF sheet, token, portrait, terrain, fear hooks, and hunt tools for Cave, Forest. This page is part of the complete Monster Almanac stat block library. It includes a official srd 5.2.1 stat block with a downloadable PDF sheet, plus connected prep tools. Use this Monster Almanac page to move from search result to table prep: read the quick 5e reference, open the stat block, download the PDF when available, generate a token or portrait prompt, build matching terrain, create a monster-bound fear hook, and turn Swarm of Bats into a focused hunt.
Swarm of Bats can be used in Cave, Forest when you want a CR 1/4 beast that helps shape combat pressure, exploration tension, or narrative danger.
Swarm of Bats works well as a supporting threat, recurring danger, or encounter-building piece inside a larger scene.
The attached official srd 5.2.1 stat block gives you a table-ready rules reference, and the PDF button keeps the sheet easy to print or save before the session.
This makes Swarm of Bats useful not only as a monster reference, but also as a scene-shaping piece for travel danger, dungeon pressure, wilderness discovery, or a stronger narrative threat.
Swarm of Bats is listed in Monster Almanac as a CR 1/4 beast.
Swarm of Bats is listed as a beast.
Yes. This page includes a official srd 5.2.1 stat block and a downloadable PDF sheet.
Yes. This page links to Swarm of Bats token, portrait, chatbot, terrain, fear hook, and monster hunt tools for fast D&D prep.
After choosing Swarm of Bats, the next step is usually to connect the monster with a place, an encounter shape, a supporting cast, or a character who fears it. Use the tools below to keep building without leaving the Monster Almanac workflow.