Is your lair feeling a little lifeless? Have your corridors lost their menace? Whether you’re an aspiring lich or a game master preparing the next grand delve, Campaign Builder: Dungeons & Ruins has everything you need to turn a “generic dungeon” into a statement piece.

Good dungeon design is all about balance: a little ambiance, a touch of mystery, and just enough traps to keep things interesting. Luckily, this book is filled with inspiration (and danger) in equal measure.

1. Set the Mood with Lighting

Harsh torchlight is so last edition. Create atmosphere with glowing runes, magical sconces, or an understated lava moat— because nothing says “welcome to your doom” like mood lighting that flatters your skeletal minions and your guests.

Not sure where to start? Consider using the Dungeons & Ruins hazard and trap tables to double as your interior mood board. Use lava vents, collapsing ceilings, or eerie magical phenomena to shape both the look and the danger of your lair.


2. Choose a Theme and Stick With It

Whether you’re going for “ancient temple chic” or “industrial necropolis,” consistency is key. The Dungeons & Ruins helps you select the perfect architectural flavor, complete with lore hooks and texture options (slimy, damp, cursed, etc.). Remember, if your dungeon tells a story, the heroes will feel emotionally invested right before you spring the trap.

Take advantage of the step-by-step dungeon design guide to walk you through creating logical layouts, recurring motifs, and story-driven room mapping so every corridor feels intentional and menacingly on-brand.


3. Flow Matters

A well-designed dungeon should guide guests naturally from one murder hallway to the next. Good flow is everything. Avoid dead ends that feel arbitrary . . . unless, of course, they hide something delightful. Think of it as an open concept… but with more looting. Moving naturally from one death trap to the next without unnecessary backtracking is the goal of all great dungeon designers.

The exploration and skill challenge rules help GMs design encounters that move the adventure along naturally, keeping heroes engaged as they dodge pitfalls and pry open suspicious doors. Get all the help you need to design dynamic encounters and clever progressions that make your dungeon feel alive, interconnected, and just the right amount of cruel.

4. Accessorize, Accessorize, Accessorize

Empty rooms are out, and accessories are in. Add personality with thematic clutter! Add a few tasteful accents – rusted relics, half-eaten rations, mysterious sigils — to bring your dungeon to life. It’s all about layers.

Decorate your lair with 15 sample curses, 17 hazards, 12 brand-new traps, and 40+ magic items from Dungeons & Ruins.  Nothing livens up a gloomy hallway like a cursed chalice or a stylish pit of spikes —each a conversation starter for any adventuring party brave (or foolish) enough to enter.


5. Don’t Forget the Curb Appeal

Just because your dungeon might be subterranean doesn’t mean the grounds can’t shine. The ruin-building tools help you design crumbled castles, vine-choked towers, and scenic, cursed courtyards.

Dungeons & Ruins makes it easy to expand your vision beyond the stone walls with ruins and megadungeon creation guides. You’ll have all the advice you need on lost cities, wilderness ruins, and how to scale up your design into full campaigns. Because first impressions matter, even in an apocalypse.


6. It’s All About Character

Ultimately, your dungeon should reflect you. Are you a meticulous architect with a taste for symmetry and despair? Or more of a chaotic creative, tossing rooms together until it feels right? Either way, Campaign Builder: Dungeons & Ruins gives you the materials to craft something truly you and truly terrifying.

Channel your inner designer with new subclasses, heritages, and talents that bring your dungeon-delving alter ego character to life — or download the Dungeon Tracker Sheet to keep your evil (and aesthetic) plans thoroughly organized as a Game Master.


With Campaign Builder: Dungeons & Ruins, you’re not just crafting an adventure—you’re curating an experience. So grab your graph paper (or your chisel), and start designing the dungeon of your dreams. Because in the end, even the darkest dungeon deserves a little love.

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