If you like "The Rising of the Shield Hero", then you might enjoy...

As Subaru Natsuki leaves the convenience store he is transported into a fantasy world. He soon gets attacked by some brutes but he is saved by the mysterious beauty named Satella. She stumbled upon him as she was pursuing a thief that stole her insignia. Subaru offers to help in her search for the thief as thanks for the rescue.

Later that night Subaru finds the thief, but unbeknownst to them, a much darker force stalks the pair from the shadows.

Just minutes after locating the insignia, Subaru and Satella are brutally murdered. However, Subaru immediately reawakens.

Subaru finds himself confronted by the same group of brutes and meeting Satella all over again. The exact same way, but they don't remember him.

Re: Zero is darker than most anime in this genre, and the groundhog day like aspect to it also differs from the norm. Its a good and different anime in its genre.

Re: Zero is a very good anime.

They are both Isekai animes with good for nothing main characters that go through conflict after conflict in order to advance. Both of the main characters are thought of as week characters. Both shows also follow a darker path than most Isekai shows.

Hajime Nagumo and his classmates are summoned to a fantasy world and tasked with saving mankind. His classmates are gifted with powerful combat abilities useful for the task at hand, but Hajime was only given an inferior transmutation ability that has no real offensive application.

The Great Orcus Labyrinth is a dungeon going many levels down into the earth. One of the first tasks to save humankind is to conquer this dungeon.

During an expedition in the Great Orcus Labyrinth, Hajime is betrayed by one of his classmates. He falls down close to the hellish bottom of the dungeon.

Hajime survives the fall, but he is faced with menacing monsters far more dangerous than anything he has faced before. Desperate to survive he ends up eating a dead monster. With his skill, he manages to gain some of its abilities.

At the bottom, Hajime finds Yue, an imprisoned vampire. He decides to free her, and she takes an interest in him and decides to follow him on his journey. A journey with only one goal, to find a way back home, to get away from this world.

On this journey, Hajime and Yue pick up some other companions, and Hajime is steadily transforming from commonplace to the world's strongest.

Arifureta is a decent Isakai anime. It not the best of its kind, but also not the worst.

Arifureta is worth checking out if you like this kind of anime and want more of it. Otherwise, stay away.

Both main characters are dragged into a different world and they both were betrayed and started out as week characters. Both are Isekai shows and they have demi-human characters and herem like themes.

People are thrown into a foreign land with nothing but hazy memories and the knowledge of their name. This group of strangers is given no other choice than to accept the only paying job in this game-like world, the role of a soldier in the Reserve Army. 

The Reserve Army has one goal, to eliminate anything that threatens the people in the world of Grimgar.

All the strong people join together and those remaining have to band together to survive in this world.

One such group of leftovers is lead by the charismatic priest Manato. The other members are the nervous thief Haruhiro, the cheerful hunter Yume, the shy mage Shihoru, the kind warrior Mogxo, the rowdy dark knight Ranta. Together they struggle to survive this harsh world.

Despite its game-like resemblance, this is no game. There are no respawns or do-overs. 

Grimgar is a kill or be killed world.

Grimgar: Ashes and Illusions is a good Isekai anime.

It's more Grim and Dark than most other anime in this genre.

It focuses more on the Mental and Emotional struggles of surviving in an RPG game-like world with no memories and having to kill goblins to survive.

Grimgar is more suited for an older audience than most other anime in this genre.

Satoru Mikami s a typical Thirty-seven-year-old corporate worker. The only thing he misses in his life is a girlfriend, otherwise he is is perfectly content with his monotonous lifestyle in Tokyo.

During a regular encounter on the street with a coworker, Satoru is suddenly stabbed by a random assailant. While he is dying he hears a voice in his mind reciting a bunch of commands that he can make any sense of.

When Satoru awakens he discovers that he has reincarnated as a goop of slime in an unfamiliar world. It's a game-like world with skills and stats and Satoru has gained the power to devour anything and mimic its appearance and abilities.

Satoru meats the sealed Catastrophe-Level monster Storm Dragon Veldora who had been sealed away for the past 300 years. Satoru befriends him and promising to assist in destroying the seal. In return, Veldora gives Satoru the name Rimuru Tempest to grant him divine protection. In this world name has power.

Rimuru starts his journey in the world and as he grows accustomed to his new life his actions ripple throughout the world and gradually alter his fate.

That Time I Got Reincarnated as a Slime is a good Isakai anime. 

Rimuru becomes somewhat overpowered but he is a fine central character. It a decent story where Rimuru meats interesting friends and build a community.

A cynical Japanese salaryman challenges Being X, a supposed god, to a battle of wits. This resulted in him being reincarnated as Tanya Degurechaff, a little girl in a world of magic and constant warfare.

Hellbent on defiance, Tanya resolves to ascend the ranks of her country's military. She soon becomes infamous for predatorial-like ruthlessness and an uncanny, tactical aptitude, earning her the nickname of the "Devil of the Rhine".

The Saga of Tanya the Evil, (Youjo Senki), is a very good anime, one of the better in the Isekai genre.

It's an unusual anime that stands out from most of the others in its genre.

Two siblings with social problems and gigantic gaming addiction are selected and sent into an alternate universe.

This universe is about gaming. All conflict and problems are solved by games. No murder or violence is possible.

They set out to get enough power and influence by winning games so they can play against the god of this universe, the god of gaming.

The premise of this anime sounds a little silly, but the anime turns out to be really good.

If you like anime and gaming, then this is a must-watch.

Momonga is a powerful wizard and master of the dark guild Ainz Ooal Gown int the popular virtual reality game Yggdrasil.

The final hour before the game shuts down for god has come and he decides to stay logged in during this event.

To his surprise, despite the clock having struck midnight, and all the servers should have been shut down, Momonga is still fully conscious inside his game character.

What's even more strange is that all the NPCs appear to suddenly have developed personalities of their own.

Surprised by this strange occurrence, Momonga decides to investigate and take control of this new world to figure out the cause and to see if there are others like him.

I recommend this anime, but only if you like this genre. Its one of the better "trapped in RPG game world" animes.

MMORPG gamers find themself transported into the game they play.

Shiroe and the others in Log Horizon attempt to live their lives out in the new world they find themselves trapped in.

They form governments, deal with NPCs and other players.

Log Horizon is a very good anime. It`s about more than simple fighting.

James and his friends were among the top teams on the newest and greatest VRMMORPG game, The Land. When they were riding a new dungeon he was separated from his friends.

A game boss, or so hi thinks, asks him a question.

After answering the same question three times he is suddenly transferred to the real planet that the game was based on.

James still has access to his character sheets and delves into this real game, where he now is called Richter.

Richter quickly finds himself dragged into an age-old war. A war between forest sprites and goblins. At the same time, he also ends up in control of his own village that he has to grow.

The Chaos Seeds books are so far among the best LitRPG books I have read, atlas among the LitRPG book that goes all-in with the game mechanic.

Richter's story is captivating, funny, and a little addictive. I feel like I'm playing the adventure I'm reading and it's always interesting when Richter levels up or finds new loot.

The only thing I hate about this series is the author, he has been attempting to trademark the LitRPG genre. He's a greedy bastard, but his books are good.

The main character in the Chaos Seeds Books also finds himself transported to another world. Just like in The Rising of the Shield Hero, he is transported to a real-world with game-like mechanics in it, only the game mechanics are much more prevalent in the Chaos Seeds Books. It also has a stronger focus on village/kingdom building mechanics and not just character leveling and questing.

Jason attends a prestigious private school and his parents are reasonably well off. But his parents are never home, and he is bullied by both students and faculty at this prestigious school.

Frustrated with his life, Jason escapes into the newly released full immersion VRMMORPG game Awaken Online.

Jason quickly finds himself on the path to be one of the game's greater villains. With his powerful necromantic power and newly won leadership of a new playable race, he becomes a target for all the rest.

Jason constantly logs on to the game for the freedom and power he gets in it. Something that he lacks in real life.

One of the reasons for Jasons growing power in the game is that one of the major AIs in Awaken Online has taken an interest in him, and in humanity.

Awaken Online online is one of the best LitRPG series.

Usually, I don't like LitRPG books that are too much in the real world. But in this case, Travis Bagwell has managed to keep that part interesting too.

Awaken Online has interesting game mechanics, and I like how the AI overlords interact with the game.

Awaken Online is an amazing book series that is absolutely worth reading, especially if you like LitRPG books.

The main character in Awaken Online also takes on an antihero/villain type of role, but not in an unwilling and misunderstood way like Naofumi. It is a relay good LitRPG/Isekai book series that is absolutely worth reading.

Joe is an army medic that had an accident at work and has become a quadriplegic with no chance of getting healthy again. When he is given the option to permanently transition his consciousness into a virtual world, a game, he takes it.

When he enters the game he is given the option of picking a special class, a ritualist. Its a class with huge potential, but it also has the drawback that if anyone discovers his class, he will be hunted down.

The Ritualist (Completionist Chronicles) is among the best LitRPG books I have read so far.

Joe does not have a typical fighting class, and he is not turned into aMary Sue character. The story is interesting, and I love the game elements and character leveling in this book.

Roark von Graf is a hedge mage, lesser noble, and a freedom fighter. When a desperate plan to unseat the Tyrant King fails, Roark finds himself in a strange and dire situation.

Roark escapes in a strange portal that sends him into an ultra-immersive fantasy video game called Hearthworld.

He can't log out, his magic is acting strangely, and he is no longer human.

Roark is now a low-level troll.

He has to guard the first level of a dungeon from players wanting to go dungeon crawling.

But if that was not enough. Roark stole something precious from the Tyrant King, something valuable enough that he uses his magic to send underlings into the game to hunt down Roark.

Can Roark become powerful enough to survive and get back to his world?

Rogue Dungeon is a mix of LitRPG and Dungeon Core. And its a collaboration between two good authors.