AI Dungeon vs NovelAI vs Character.AI vs Blade RPG: Which One Is Right for You?

"AI text game" covers three very different products, and almost every disappointed review comes from someone who picked the wrong category rather than the wrong product. Sort yourself first:

Specifically replacing AI Dungeon? Start with our dedicated guide to AI Dungeon alternatives, which ranks every option by what you're actually trying to fix — prose, filters, memory, or a real game underneath. This page is the wider side-by-side of the whole category.

• Story writing — you want a co-author for fiction
• Character chat — you want to talk to, or romance, AI characters
• An actual game — you want stats, stakes, and a world that pushes back

The comparison

Quick honest takes

AI Dungeon — the pioneer, still the most flexible

Invented the genre in 2019. Huge scenario library, multiple models, very few rails, and still the lowest-friction way to find out whether you like AI text games at all. The flip side of "you can do anything" is that nothing resists you — there are no hard systems keeping score, so tension tends to evaporate once you realise you can talk your way past everything. That is a design position, not a bug.

NovelAI — for writers first, players second

Excellent prose control, a proper lorebook for persistent facts, and strong customisation. If your goal is producing fiction with AI assistance, it is arguably the best tool on this list. It is not trying to be a game and you shouldn't expect it to push back.

Character.AI — conversation, not campaign

Very good at personas and sustained chat. No world state, no stakes, no progression — by design. If what you want is a character who remembers you and talks well, this is the shortest path to it. If instead you want to write a character into a world and have it act from what you wrote — including against you — that is a different product category, closer to what our Sandbox does (see below).

SillyTavern — the power-user answer

Not a product so much as a front end you point at a model you're running or paying for. Unmatched control and no imposed filters, at the cost of setup, maintenance and your own compute bill. If the phrase "configure a backend" doesn't bother you, this is the ceiling for flexibility.

Blade RPG — ours, with the fine print

The English game has two modes. An AI narrates both, over a separate engine that holds the state. New accounts start in the Sandbox: a text wuxia world — martial arts, mortal limits, no magic — where every turn gives you numbered choices and a 🔮 Intent button for writing your own action in up to 100 words. Whatever your Intent changes is written into your bag, your skills, the people you know and your chronicle, and fed back into later turns. You can write your own characters into the People panel — no preset personality types, just what you give them — and a defeat becomes the next chapter. The first three Intents are free. How Intent works →

The Death Challenge is the strict one: a text cultivation roguelike where the engine decides outcomes. It tracks your realm, HP, qi, satiety, injuries and spirit stones, rolls your spirit root once and locks it, and enforces five written death conditions. When you die that save closes and cannot be continued — there is no reload button. The Market does sell a Moonlight Box (rewind your last decision) and Save Pills (clone a living avatar into a separate save), so careful players can keep a backup; nothing for sale raises your stats or brings a dead save back. It is one tap away in the Hall: + New Avatar, then I'm not afraid to die.

Don't pick Blade RPG if you want erotic roleplay as the main course, a relaxing idle experience, a setting of your own invention, or visuals. Those are genuinely the other products' turf and they do them better.

One clarification, since it causes confusion: those two modes are the English game. The Chinese game's sandbox of thousands of player-built worlds is a separate Traditional Chinese product and is not in English. Explained here.

What none of them have solved

Long-run memory, consistent tone across hundreds of turns, and the model's underlying eagerness to agree with you. Every product here manages those trade-offs differently and none has fixed them. The four problems nobody has solved, in detail →

If you are currently running your campaign by prompting ChatGPT directly, that is a legitimate fourth option with its own specific walls — covered here, including a DM prompt that actually works.

FAQ

Which AI text RPG should I pick?

It depends what you want. For collaborative fiction writing, NovelAI. For chatting with characters, Character.AI. For full control with no filters, a local SillyTavern setup. For typing your own actions into a world that keeps track of them, Blade RPG's wuxia sandbox; for stats, resource pressure and a death that ends the save, its Death Challenge. AI Dungeon itself remains the most flexible free-form option and is still the easiest starting point.

Is AI Dungeon still free?

It keeps a free tier with paid subscriptions for better models and more context. Check their site for current limits.

Which of these has real game mechanics?

Most AI text products are storytelling or chat tools where the model both narrates and adjudicates, so nothing can truly resist you. The ones with real mechanics keep a separate engine that holds state and decides outcomes. That is the gap Blade RPG exists to fill: in the sandbox the engine keeps what your actions change; in the Death Challenge it tracks realm, HP, qi, satiety and injuries independently of the narration and decides whether your plan works and whether you survive it.

Is there an AI cultivation or xianxia game in English?

Blade RPG's English game has two modes. New accounts start in a text wuxia sandbox — martial arts, no magic — where you pick numbered choices or write your own actions with Intent, and the engine keeps what changes in your bag, skills, people and events. The cultivation (xianxia) mode is the Death Challenge: a text roguelike with a spirit root rolled once and locked, a 45-rank realm ladder from Qi Condensation upward, and a death that ends the save; it is one tap away in the Hall. The Traditional Chinese game adds player-built worlds, which are not in English. For the wider genre — including the Steam sims and idle games — see Cultivation Games in 2026.

Which AI text RPG has the best memory?

Memory is the genre's hardest unsolved problem and no product has fully solved it. Tools with explicit lorebooks such as NovelAI give you manual control over what persists. Products with an external state engine sidestep part of it, because the facts that matter mechanically live in a database rather than in the context window.

What about free options?

AI Dungeon and Character.AI both have real free tiers, SillyTavern is free software, and Blade RPG gives 40 turns with no card, including three free Intents for new accounts. Nobody in this space is short of ways to try before paying.