Backyard Dungeon

Backyard Dungeon (Backyard Dungeon, #1) by Logan Jacobs follows a man who inherits a trailer and land from his estranged grandfather, only to discover a hidden dungeon on the property. This underground realm contains strange caverns, dangerous creatures, and captive supernatural women, alongside valuable treasure. The story blends elements of urban fantasy, romance, and erotica as the protagonist navigates the challenges of exploring and concealing this secret world. The tone combines adventure with adult themes in a contemporary setting.

Backyard Dungeon 2 by Logan Jacobs continues the adult LitRPG and progression fantasy saga of a man whose suburban yard conceals a lethal magical underworld. Now the owner of his own land and bonded to Ibseth, a devoted Night Elf, he explores the Gloom alongside Amrila, his half-demon partner in both combat and desire. As monsters, magic, and dungeon loot shape their survival, the looming threat of Ibseth’s unstable half-brother forces him to seek new allies and heavier firepower. The novel blends urban fantasy, harem romance, explicit erotica, and game-like advancement with a tense focus on protection, territory, and escalating supernatural conflict.

Backyard Dungeon 3 by Logan Jacobs continues this adult LitRPG and urban fantasy series with the protagonist balancing real-world tensions and underground danger. After turning his backyard portal into a source of wealth, property, and a growing harem, he now faces a hostile neighbor and the escalating threat of his wife Ibseth’s unstable half-brother. The narrative moves between suburban conflict and the supernatural dungeon below, where monsters, magic, and progression-based challenges test his survival skills. Fantasy, erotica, and sword-and-sorcery elements combine with virtual-reality-style mechanics as he tries to protect his home life while delving deeper into the perilous underground world.

Backyard Dungeon 4 by Logan Jacobs continues this adult LitRPG and progression fantasy series with its blend of suburban life and dangerous magic. The narrator now juggles his secret existence as a dungeon delver with the pressures of nosy neighbors, a dubious Irish fence for his loot, and the looming threat of his wife’s unstable half-brother. Convinced this ruthless chief is working with Demons, he realizes he cannot survive the coming conflict alone. To stand a chance, he must forge alliances with the remaining Night Elf tribes, navigating supernatural politics, monster-filled challenges, and erotic entanglements as the stakes in both worlds escalate.

Backyard Dungeon 5 by Logan Jacobs continues this adult LitRPG progression fantasy with higher stakes on both the home front and the battlefield. The protagonist is expanding his control of the suburban cul-de-sac to provide separate houses for his growing harem of wives, while Ibseth’s pregnancy adds new urgency to securing their future. To protect his family and territory, he must confront Ibseth’s dangerous half-brother Ursenger, a threat that forces him to seek support from the rest of the Gloom. Blending urban fantasy, supernatural warfare, and explicit harem romance, this volume pushes its hero deeper into survival-driven conflict and magical power-building.

Backyard Dungeon 6 continues Logan Jacobs’ adult LitRPG saga as the threat of Ursenger is finally removed, giving Ibseth a fragile sense of safety. Even with her dangerous half-brother gone, the Gloom remains unstable, and new problems emerge on the surface when a mysterious stalker begins shadowing the protagonist. Torn between securing his homes and protecting his unconventional family, he must also confront growing disturbances in the Twilight and Deeper Dark. With monsters, magic, and supernatural allies like Scourge eager to visit the surface, this installment blends progression fantasy, urban fantasy intrigue, and explicit harem romance with ongoing survival stakes.

Backyard Dungeon 7 by Logan Jacobs continues this urban fantasy LitRPG series with higher stakes on both domestic and supernatural fronts. With a local criminal threat removed, the protagonist turns his attention to expanding his control over the cul-de-sac, caring for his growing harem of wives, and preparing for impending fatherhood. At the same time, new monsters emerge from the Twilight and Deeper Dark, forcing him to balance romance, erotic entanglements, and survival-driven combat. As he confronts a dangerous vampire coven to safeguard his family, friends, and the Gloom itself, the book blends progression fantasy elements with magic, monsters, and adult themes.

Backyard Dungeon 8 continues Logan Jacobs’ urban fantasy LitRPG series with Halloween approaching and new threats emerging. The protagonist is preparing for multiple weddings and launching a new business in the real world, even as a mysterious enemy named Mikeil sends lethal chimera monsters after him. Balancing romantic commitments, erotic entanglements, and the demands of his growing harem, he must also decide how much of his supernatural success to reveal to his best friend. The novel blends progression fantasy, virtual reality elements, and survival-driven action as he tracks Mikeil to protect his lovers, his home, and his expanding power.

Backyard Dungeon 9 continues Logan Jacobs’ adult LitRPG saga as the protagonist pushes deeper into the Gloom and Twilight, hunting the remaining servants of Belzat. With one powerful minion defeated, new threats emerge in the form of a rumored succubus preying on unsuspecting victims, forcing him to balance survival, progression, and responsibility. Supported by his allies and wives, he must strengthen his magic, navigate dangerous supernatural encounters, and protect those under his care. This installment blends harem romance, explicit erotica, and progression fantasy with urban fantasy elements and ongoing dungeon warfare.

Backyard Dungeon 10 continues Logan Jacobs’ adult LitRPG series with its mix of urban fantasy, dungeon-crawling, and explicit harem elements. The protagonist now has to balance real-world threats to his growing business, including sabotage and theft, with escalating dangers in the Twilight, where a Goblin king has formed an alliance with a Demon Lord. As he navigates monsters, magic, and criminal interference, survival depends on both strategic progression in the dungeon and shrewd moves in the city above. This volume maintains the series’ focus on power growth, supernatural conflict, and erotic relationships within a high-stakes, game-like world.

Backyard Dungeon 11 continues Logan Jacobs’ adult LitRPG saga of a once-struggling graduate who now straddles suburban life and a dangerous underground realm. After inheriting a trailer and a patch of land that concealed a vast dungeon, he has become a key defender of the Gloom, collecting titles, allies, and lovers while expanding his influence in the cul-de-sac above. As he prepares for impending fatherhood and launches a new business, threats from the Deeper Dark intensify, sending more monsters and supernatural forces through unstable cracks. The novel blends progression fantasy, harem romance, explicit erotica, and survival-driven dungeon combat in an urban fantasy setting where domestic plans and sword-and-sorcery stakes collide.

Backyard Dungeon 12 continues Logan Jacobs’ adult LitRPG and urban fantasy series with the Gloom relatively stable while the surface world grows more complicated. The protagonist has acquired his entire cul-de-sac and is planning a fortified home base for his wives and future children, even as he adjusts to fatherhood after Ibseth gives birth to their first son. Alongside expansion plans that include a shooting range and possibly another surplus store, a new threat emerges when his lawyer, Travis Meyer, is targeted by a blackmailer tied to an old grudge. The novel blends progression fantasy, harem romance, and supernatural danger as loyalty to his chosen family drives the next round of conflicts.

Backyard Dungeon 13 continues Logan Jacobs’ adult LitRPG saga as the protagonist balances real-world ambitions with escalating dangers in the Gloom. With his lawyer freed from blackmail and construction of a shooting range and fortified cul-de-sac underway, his focus shifts back underground, where destabilizing cave quakes threaten the survival of his allies and the monsters he relies on. As these tremors spread through the subterranean realm, he begins to suspect a deliberate cause rather than a natural disaster, forcing him to reassess both his magical defenses and his growing power. This installment blends urban fantasy, progression fantasy, and erotic harem elements with an increasingly tense, supernatural thriller atmosphere.

Backyard Dungeon 14 continues Logan Jacobs’ adult LitRPG saga as the backyard portal now leads to a high-stakes hunt in France. With Demon Lord Belzat preparing a devastating assault on the Gloom, the protagonist must track down an ancient magical suit of armor designed specifically for battling demons, starting with its long-lost gauntlets hidden overseas. Blending urban fantasy, progression fantasy, and explicit harem elements, this installment raises the stakes from survival to large-scale supernatural warfare. Readers can expect game-like progression, dangerous monsters, and a mix of erotic romance and sword-and-sorcery action in both familiar and foreign settings.

Backyard Dungeon 15 by Logan Jacobs continues this urban fantasy LitRPG series with a focus on vengeance, expansion, and escalating magical stakes. After an attack on Chief Ekneme, his mother-in-law, the protagonist must track down the assailant while juggling real-world responsibilities like launching a new gun range. At the same time, he continues his progression by seeking the remaining pieces of powerful demon-slaying armor, deepening both the supernatural and survival elements. Blending harem romance, explicit adult content, and sword-and-sorcery style monster encounters within a modern setting, this installment maintains the series’ mix of action, magic, and erotic tension.

Backyard Dungeon 16 continues Logan Jacobs’ adult LitRPG series with Jake juggling real-world responsibilities and dangerous magical objectives. After avenging his mother-in-law and easing tensions between the Gloom and the Twilight Region, he is back to managing two businesses, planning a third, and upgrading the cul-de-sac he shares with his wives, all while dealing with intrusive neighbors. At the same time, Jake believes a crucial piece of enchanted armor lies hidden in a nearby national park, pulling him into a new mix of urban fantasy, supernatural threats, and progression-focused dungeon challenges. The novel blends harem romance, explicit erotica, and survival-driven adventure as Jake balances domestic life with high-stakes exploration.

Backyard Dungeon 17 continues Logan Jacobs’ adult LitRPG saga of underground empires, expanding harems, and escalating magical threats. Now a property owner of an entire cul-de-sac and several businesses, the protagonist juggles fatherhood with his roles as lord and king consort, all while remaining the only one capable of locating the enchanted armor needed to confront the Demon Lord of Chaos. As he waits for the next clue in this progression fantasy, trouble brews in the Goblin city of Dermarkt, where gang conflicts and urban intrigue demand his attention and the help of a surface-world ally. The novel blends erotic harem dynamics, supernatural politics, and survival-driven adventure in a dangerous, monster-filled realm.

Backyard Dungeon 18: A Reverse Portal Fantasy continues Logan Jacobs’ adult LitRPG saga with the stakes raised on multiple fronts. As King Consort of the goblin city of Glecik, the protagonist must respond to a devastating demon assault while still pursuing the scattered pieces of the enchanted Armor of Vallis needed to challenge the Demon Lord of Chaos. The narrative blends urban fantasy elements, dungeon progression, and supernatural warfare with explicit harem romance and erotic encounters. Balancing political responsibility, survival strategy, and magical advancement, this installment deepens the ongoing conflict both in the city above and in the dangerous spaces beneath it.

Backyard Dungeon 19 continues Logan Jacobs’ urban fantasy LitRPG series with the protagonist closing in on the final piece of the Armor of Vallis, even as new problems crowd his path. Before he can hunt for the missing greaves, he must uncover the motives of Sullak, the Demon Lord of Sorrows, whose sudden interest suggests dangerous supernatural stakes. At the same time, a new business venture with Nate and the declining health of Chief Murdrak pull him into more grounded responsibilities that complicate his survival-focused progression. The story blends magic, monsters, and virtual-reality-style dungeon challenges with harem romance and adult content as the hero prepares for an expedition into the perilous Deeper Dark.

Backyard Dungeon 20 by Logan Jacobs continues this adult LitRPG and progression fantasy series in the dangerous depths of the Deeper Dark. Sent to scout the Demon Lords’ forces and locate a reliquary tied to Sullak, the Lord of Sorrows, the protagonist instead becomes entangled in a full-scale uprising among the oppressed denizens of this underground realm. As rebellion brews, he must balance his original objectives with the chance to free his friend Scourge from a deadly pact, all while navigating monsters, magic, and shifting alliances. The story blends urban fantasy elements, supernatural warfare, and explicit harem romance with survival-focused dungeon action and game-like stakes.

Backyard Dungeon 21 continues Logan Jacobs’ adult LitRPG saga as the protagonist and his party return from a dangerous mission in the Deeper Dark, having slain a Demon Lord but triggered larger consequences. With war against Belzat looming in the subterranean realms, he must strengthen both the Gloom and the Twilight while navigating shifting alliances, monsters, and escalating supernatural threats. At the same time, his expanding harem and close-knit household demand attention, pushing him to consider revealing his hidden dungeon world to a trusted friend. Blending urban fantasy elements, progression fantasy, and explicit harem romance, this volume focuses on preparation, survival strategy, and the mounting tension of an impending magical conflict.

Backyard Dungeon 22 by Logan Jacobs continues this adult LitRPG progression fantasy as the long-anticipated assault on the Lord of Chaos finally begins. With his lovers, allies, and monstrous companions gathered into a single force, the protagonist leads an army into the Deeper Dark to liberate imprisoned mortals and challenge the Demon Lords’ control. The stakes extend beyond the underground caverns, as Belzat’s potential return threatens The Gloom, the Twilight Region, and even the surface world with supernatural ruin. Blending urban fantasy elements, explicit harem romance, and game-like survival mechanics, this installment focuses on large-scale conflict, escalating magic, and the consequences of victory or defeat.