koboldplus.club

What is Kobold Plus Fight Club?

Kobold Plus Fight Club is a web tool for Dungeons & Dragons 5th Edition Dungeon Masters who need to build combat encounters quickly. It is a fan-made revival of the original Kobold Fight Club, a popular encounter builder that went offline; the "Plus" version keeps the same core idea while running on a modern, maintained site. In practice, you pick a party size and level, add monsters from the official 5e sources, and the tool calculates whether the resulting fight is trivial, easy, medium, hard, or deadly based on the game's encounter-building math.

What you actually do with it

• Set your party: number of characters and their level.
• Search or filter monsters by name, challenge rating, type, environment, or sourcebook.
• Add or remove creatures and watch the difficulty rating update live.
• Save or share encounter setups so you can prep a session in advance or hand a link to another DM.

Who it suits

It is most useful for DMs running prep-heavy 5e campaigns who want a fast sanity check on whether an encounter will wipe the party or bore them. It is less useful if you run a different system, prefer to eyeball difficulty, or want a full virtual tabletop with maps and tokens — this is a planning aid, not a combat tracker.

Trade-offs to expect

The difficulty labels come from 5e's published guidelines, which are a rough estimate rather than a guarantee; party composition, magic items, and tactics often matter more than the number. Encounter builders also depend on how complete and current their monster data is, so verify anything unusual against the official stat block before you run it.

A practical next step: open Kobold Plus Fight Club, enter your actual party, and rebuild the last encounter that felt too easy or too brutal. Comparing the tool's rating against what really happened at your table is the fastest way to learn how much to trust it for your group.

How do I build a balanced D&D 5e encounter with Kobold Plus Fight Club?

Start by deciding what role the encounter plays in your session, then let Kobold Plus Fight Club handle the arithmetic. The site is a rebuilt encounter builder for D&D 5e: you select a party (size and level), add monsters, and it returns a difficulty readout against the 5e thresholds — typically Easy, Medium, Hard and Deadly. That readout is the main thing it gives you, so treat it as a starting point for judgment rather than a verdict.

A practical workflow

1. Set the party first. Enter the number of characters and their levels. For mixed-level groups, most DMs enter the average level or build the encounter for the majority, then mentally adjust for the outlier.
2. Pick monsters by theme, not by number. Choose creatures that fit the location and story. A goblin ambush, a crypt full of undead and a fey negotiation gone wrong all want different stat blocks even at the same difficulty.
3. Watch the multiplier, not just the total. The 5e encounter guidelines inflate the effective difficulty when you field many monsters at once, because action economy matters more than raw hit points. A dozen weak creatures can threaten a party far above their combined XP value.
4. Adjust for your table. If your group has strong magic items, a healer, or players who optimise heavily, push toward Hard or Deadly. If they are new, casual, or short on resources, aim lower than the label suggests.
5. Test the shape of the fight. Ask whether the party has a way to reach the enemies, whether the terrain favours one side, and whether the monsters can be split into waves. Difficulty labels assume a fairly neutral battlefield.

Matching the tool to the situation

Where the tool stops and you start

An encounter builder can tell you that eight bandits plus a captain reads as Deadly for four level-5 characters. It cannot tell you that the bandits will focus-fire the wizard, that the captain will flee at half hit points, or that the fight happens on a narrow bridge where only two characters can engage at once. Those details decide whether the encounter is memorable or a slog.

For comparison while planning, D&D Beyond hosts an encounter builder tied to its own monster listings, and 5e Tools is useful for quickly looking up stat blocks and abilities. Cross-checking a stat block's actual damage output against your party's hit points often reveals more than the difficulty label alone.

A useful next step: build the encounter you have in mind, then run one mental round. Count how much damage the monsters can deal if everything hits, and compare it to your squishiest character's hit points. If a single round could drop them, either lower the count, add terrain that breaks line of sight, or plan an escape route — the builder's label will not warn you about that.

Can Kobold Plus Fight Club adjust encounter difficulty for a specific party size and level?

Yes. Kobold Plus Fight Club is built around exactly that task: you tell it your party's size and average level, and it recalculates encounter difficulty against those numbers rather than showing a single fixed rating.

How the adjustment works in practice

The tool applies the standard 5e encounter-building math — party size and level feed into the XP thresholds for Easy, Medium, Hard and Deadly, and a party-size multiplier adjusts the effective difficulty of the monsters you add. Change the party from four level 5 characters to six level 5 characters and the same monster list will read easier; add a seventh and it shifts again. This matters most at the edges: small parties of two or three, and large parties of six or more, where a flat "CR 8 is fine" judgment breaks down badly.

What you actually do

1. Set the number of PCs and their level (the tool supports mixed-level handling through an average or per-character entry).
2. Add monsters from the searchable list, filtering by CR, type, environment or source.
3. Read the running difficulty tally as you add or remove creatures.
4. Adjust until the fight sits where you want it — a Medium skirmish, a Hard set-piece, or a Deadly boss.

Where it helps and where it doesn't

The honest limitation is that the XP-threshold method is a budget, not a prediction. A party with strong optimisation, full resources and good positioning will beat a "Deadly" encounter; a drained party facing a monster with a save-or-suck ability can lose a "Medium" one. Treat the output as a starting point and adjust on the night.

A concrete next step

If you run a table of five or six players, build your next session's encounters at the tool's Hard threshold rather than Medium, then keep one low-CR creature in reserve to add mid-fight if the party is steamrolling. For published adventures, compare the module's listed encounter against the tool's rating at your actual party size — the gap you find is usually the adjustment you need to make.

Other encounter builders worth knowing include D&D Beyond's encounter builder and Kassoon's encounter calculator, both of which handle party size and level similarly.

How does Kobold Plus Fight Club differ from the original Kobold Fight Club?

Kobold Plus Fight Club is a community-run revival of the original Kobold Fight Club, a Dungeons & Dragons 5th-edition encounter builder. The original site was a free fan tool that let Dungeon Masters assemble a party, add monsters from official 5e sources, and see how the resulting encounter stacked up against difficulty thresholds. It became a staple for prep because it handled the tedious math and monster lookup in one place. The original went offline, and Kobold Plus Fight Club carries that same core idea forward on a new domain.

The practical differences come down to maintenance, scope and interface rather than a dramatic redesign:

• Continuity and upkeep. The original is no longer maintained by its creator. Kobold Plus Fight Club positions itself as the successor that keeps the tool available and updated, which matters if you rely on newer monster sources or want a site that stays online.
• Source coverage. Both are built around 5e monster data. A revival can fold in material released after the original stopped updating, so check the source list before assuming your campaign's books are included.
• Interface and features. The revival keeps the familiar party-size, party-level and monster-search workflow, but expect small usability changes and possibly additional filters or export options. Treat these as version differences to verify on the site rather than guarantees.
• Availability. The main reason to switch is simply that the original may be unreachable or frozen. If you only need the classic experience and it still loads for you, the difference is minimal.

For a concrete case: you are prepping a session tonight, you have four level-5 characters, and you want to know whether six goblins plus a hobgoblin is a "hard" fight. Either tool answers that in under a minute. The deciding factor is whether the monster you need exists in the data set and whether the site is up when you sit down to prep.

Next step: open the site, build a throwaway encounter with a party you actually run, and confirm the monster sources you care about appear in the search. If they do, the revival is a drop-in replacement; if a key source is missing, keep the original bookmarked alongside it. You can also cross-check difficulty guidance in the 5e basic rules at D&D Beyond or the free SRD.

Does Kobold Plus Fight Club work offline or without an internet connection?

No — Kobold Plus Fight Club is a browser-based encounter builder, so it needs an internet connection to load and use. Nothing in the site's page evidence indicates an offline mode, downloadable desktop app, or service-worker caching that would let it run disconnected.

What that means in practice

• At the table: If your venue's Wi-Fi is flaky, load the tool and build your encounters before the session, then keep the results in a document, notes app, or printed page you can read without a connection.
• On the road: Preparing encounters on a laptop with no signal won't work. Do that prep somewhere connected, or bring pre-built stat blocks and initiative lists with you.
• Mobile use: Same limitation — it's a web page, so a phone with no data can't reach it.

If offline access is a hard requirement

Look for tools that explicitly ship a downloadable or installable version rather than assuming a web tool will work disconnected. A few well-known options in the same space:

Advice, not a product claim: for any tool you rely on at the table, test it once in airplane mode before game night. That single check tells you more than any feature list.

Can I save or share encounter setups with my Dungeon Master group?

Yes. Kobold Plus Fight Club is built around creating an encounter from a chosen set of monsters, and the site's URL structure is the practical sharing mechanism: once you have assembled your monsters and adjusted the party and difficulty settings, the address in your browser reflects that configuration. Copy it and paste it into your group chat, and anyone who opens it lands on the same encounter rather than a blank builder.

What that means at the table

• Sharing is link-based, not account-based. You do not need everyone to register or log in; the recipient just needs the link and a browser.
• The link is the save. Keep a running note in your campaign doc, a Discord channel, or a bookmarks folder with one link per planned encounter. That gives you a reusable library without any in-site storage.
• Edits are not synced. If you later change the monster list, the old link still points to the old setup. Treat each link as a snapshot and generate a fresh one after meaningful changes.
• Bookmark before you close the tab. If you have spent time tuning an encounter, the URL is the only copy you control.

A concrete workflow for a DM group

Before a session, build each likely fight and drop the links into a single message: "Ambush on the road," "Cultist shrine," "Boss chamber." During play, if the party goes somewhere unexpected, anyone at the table can open the relevant link and run the encounter while you narrate. For a shared campaign wiki, the same links paste straight into a session page.

One caution worth planning around: very long monster lists produce very long URLs, and some chat apps wrap or truncate them. Shorten or verify the link after pasting, or keep the full text in a document the group can open directly.

If you want a persistent, editable encounter library rather than a set of snapshots, a general-purpose tool such as Notion or a campaign wiki like Kanka will serve better, with Kobold Plus links stored inside it as the encounter source.