Introduction
If you enjoyed That Time I Got Reincarnated as a Slime, finding another anime with the same mix of worldbuilding, nation-building, and satisfying character growth can be difficult. While many isekai anime feature overpowered protagonists, only a few capture the same feeling of watching a fantasy world grow alongside its main character.
If you’re searching for anime like That Time I Got Reincarnated as a Slime, this spoiler-free list recommends five anime with similar characters, fantasy settings, worldbuilding, and overall viewing experiences.
Whether you loved Rimuru’s leadership, the expanding world of Tempest, or the balance of action and comedy, these anime are excellent choices to watch next.
Quick List: Best Anime Like That Time I Got Reincarnated as a Slime
- Overlord — The closest match for kingdom-building and an overpowered protagonist.
- So I’m a Spider, So What? — Monster reincarnation with satisfying progression.
- Tsukimichi: Moonlit Fantasy — Fantasy adventure centered around building a new society.
- The Rising of the Shield Hero — Character growth, trusted allies, and exciting adventures.
- How a Realist Hero Rebuilt the Kingdom — Kingdom management and political strategy.
1. Overlord
What It Is About
Overlord follows Momonga, a legendary player who remains inside his favorite virtual reality game after its servers shut down. Instead of logging out, he finds himself transported into a real fantasy world while retaining incredible magical power.
As the ruler of Nazarick, he expands his influence through diplomacy, military strength, and careful planning.
Why You Should Watch It After That Time I Got Reincarnated as a Slime
If your favorite part of Slime was watching Rimuru build Tempest into a powerful nation, Overlord offers one of the closest experiences.
Both series feature an overwhelmingly powerful leader, loyal followers, multiple fantasy races, and an ever-expanding world. While Overlord has a darker atmosphere, its focus on kingdom-building makes it a natural recommendation.
Similarities to That Time I Got Reincarnated as a Slime
Characters
- Overpowered protagonist
- Loyal companions
- Strong leadership
World and Setting
- Large fantasy world
- Multiple races
- Political conflicts
Story and Tone
- Nation-building
- Strategic battles
- Expanding worldbuilding
Who Will Like It Most
Fans who enjoyed watching Tempest develop into a powerful nation.
2. So I’m a Spider, So What?
What It Is About
A high school girl is reincarnated as a tiny spider monster inside a dangerous dungeon. To survive, she must continuously evolve, gain new abilities, and overcome increasingly powerful enemies.
Why You Should Watch It After That Time I Got Reincarnated as a Slime
Like Rimuru, the protagonist starts as a monster instead of a human. Watching every evolution and newly unlocked skill provides the same satisfying progression that made Slime so enjoyable.
The RPG-style growth system makes every victory feel rewarding.
Similarities to That Time I Got Reincarnated as a Slime
Characters
- Monster reincarnation
- Continuous growth
World and Setting
- Fantasy RPG mechanics
- Skill evolution
Story and Tone
- Progression-focused adventure
- Action with comedy
Who Will Like It Most
Viewers who loved Rimuru’s early evolution and skill progression.
3. Tsukimichi: Moonlit Fantasy
What It Is About
After being rejected by the goddess who summoned him, Makoto begins creating his own community while gathering allies from many different fantasy races.
His journey gradually expands into a story about leadership, exploration, and building a new civilization.
Why You Should Watch It After That Time I Got Reincarnated as a Slime
Like Rimuru, Makoto builds a thriving society where different races can live together peacefully.
The balance of action, comedy, and fantasy worldbuilding makes it one of the most enjoyable anime for Slime fans.
Similarities to That Time I Got Reincarnated as a Slime
Characters
- Powerful protagonist
- Memorable companions
World and Setting
- Fantasy races
- Community building
Story and Tone
- Adventure
- Humor
- Expanding fantasy world
Who Will Like It Most
Fans who enjoyed Tempest’s growing community and diverse cast.
4. The Rising of the Shield Hero
What It Is About
Summoned as the Shield Hero, Naofumi begins his adventure under difficult circumstances before gradually becoming stronger alongside trusted companions.
The story combines action, adventure, and meaningful character development.
Why You Should Watch It After That Time I Got Reincarnated as a Slime
Although the atmosphere is more serious, both anime focus on steady character growth, loyal friendships, and overcoming increasingly difficult challenges.
The journey feels rewarding without relying only on overwhelming power.
Similarities to That Time I Got Reincarnated as a Slime
Characters
- Growth-focused protagonist
- Strong friendships
World and Setting
- Fantasy kingdoms
- Adventuring across multiple regions
Story and Tone
- Action
- Adventure
- Character progression
Who Will Like It Most
Viewers who enjoy long-term character development and teamwork.
5. How a Realist Hero Rebuilt the Kingdom
What It Is About
Instead of defeating enemies through overwhelming strength, Kazuya rebuilds a struggling kingdom using economics, diplomacy, administration, and practical knowledge.
Why You Should Watch It After That Time I Got Reincarnated as a Slime
If your favorite part of Slime was watching Tempest grow into a successful nation, this series focuses even more on politics and kingdom management.
It replaces large-scale battles with strategic decision-making while maintaining the satisfaction of watching a nation steadily develop.
Similarities to That Time I Got Reincarnated as a Slime
World and Setting
- Kingdom management
- Diplomacy
- Politics
Story and Tone
- Nation-building
- Strategy
- Economic development
Who Will Like It Most
Fans who enjoyed the leadership and administrative side of Rimuru’s journey.
Which Anime Should You Watch First?
If you want the closest overall experience
Overlord
The strongest recommendation for fans of kingdom-building, powerful leaders, and fantasy politics.
If you enjoyed monster evolution
So I’m a Spider, So What?
A great choice if Rimuru’s early growth and evolution were your favorite parts.
If you loved Tempest’s worldbuilding
Tsukimichi: Moonlit Fantasy
Offers a similar combination of fantasy races, city-building, and lighthearted adventure.
If you prefer character growth
The Rising of the Shield Hero
Focuses on overcoming challenges through teamwork and gradual progression.
If you enjoyed the political side of Slime
How a Realist Hero Rebuilt the Kingdom
The best recommendation for viewers who found kingdom management more interesting than combat.
Conclusion
That Time I Got Reincarnated as a Slime remains one of the most popular isekai anime because it successfully combines action, fantasy, worldbuilding, memorable characters, and nation-building.
Each anime on this list captures a different part of that experience. If you want the closest overall recommendation, start with Overlord. If you’re looking for another enjoyable fantasy adventure centered on building a thriving community, Tsukimichi: Moonlit Fantasy is another excellent choice.