/icon_text_light_svg.svg){kind=icon}
Undertale lands because every monster is a person. Combat is a menu, fight, act, item, mercy, and choosing mercy actually means something. Every named character has a theme song. Every dialog line has a typing-blip per voice.
The game watches what you do across the whole run and rewires itself accordingly. Pixel art, indie ambition, and a soundtrack iconic enough to chart on Billboard combine into a story that hits harder than its scope predicted. It is the cleanest example of how mechanics encode ethics.
Available on PC, Switch and PlayStation · 2025
Toby Fox’s follow-up, releasing in chapters. Same vibe, broader scope, more party-based combat. If you played Undertale and want more, this is the answer.
Available on PC, Switch, PlayStation and Xbox · 2020
Pixel-art RPG with surreal-cute aesthetic and devastating emotional payload. Combat is menu-driven with an emotion system. Spiritual sibling.
Available on PC, Switch and PlayStation · 2023
Time-loop RPG with character-driven dialog and rock-paper-scissors combat. Heartfelt, well-written, criminally underplayed. The hidden gem on this list.
Available on PC · 2014
A grim-funny RPG with combo-based combat and choices that genuinely hurt. Heavier than Undertale by a mile, but in the same lineage of mechanics-as-storytelling.
Yes. Here is how, with Chatforce. The Top-Down Overworld engine handles the walking-around-towns part, and the Visual Novel / Management Sim engine handles the menu-driven combat and dialog.
The Coder fuses them into Undertale’s exact pattern: walk around, bump into an enemy, drop into a menu-driven combat with a real mercy option. You will not write Toby Fox’s script in a session, but a playable build with three towns, eight NPCs, a fight-or-spare encounter, and three endings is the right size for a Chatforce build.
Pixel art with personality. Each NPC needs an instantly readable silhouette. The Artist keeps every dialog portrait and overworld sprite on-model across the whole game, so each NPC stays recognizable.
One leitmotif per named character. The Sound Engineer composes a unique theme for every NPC, plus a calm overworld theme and a tense combat variant.
Tile-based overworld walking plus a menu-driven combat with fight/act/item/mercy. Choices write to save state and gate endings. The Coder agent ties the engines together.
A small overworld with three towns, a few interiors, and a path between. The Artist generates tile sets; the Coder lays the rooms with NPC trigger points for dialog.
Your hero plus eight or so named NPCs, each with a portrait, a sprite, a theme, and dialog. Per-character consistency keeps every NPC instantly recognizable.
Dialog boxes with portraits, a typing-blip per character voice, a four-option combat menu, an HP bar that reads as a heart. The Coder agent has built it before.
The Studio Director scopes a small overworld with three towns, eight named NPCs, two combat encounters (one with a fight-or-spare branch), and three endings. She picks the Top-Down Overworld engine for the world and the Visual Novel / Management Sim engine for dialog and combat menus.
The Artist drafts the concept screenshot, your hero meeting their first NPC in a doorway, pixel art with charm and personality. Every NPC stays on-model for the rest of the game, so the cast feels like one consistent world.
The Coder assembles the Top-Down Overworld scene with tile-based movement and the Visual Novel / Management Sim flow for combat encounters with a four-option menu (fight, act, item, mercy). Player choices write to save state and gate endings.
The Sound Engineer composes unique character themes so every named NPC gets their own motif, plus original sound effects for the iconic text-blip per character voice and the chimes for menu choices. Theme music does the heavy lifting.
“A dialogue-driven story RPG where I am a librarian and the ‘monsters’ are book ghosts. Combat is a menu: read, listen, gift-bookmark, mercy. Pixel art with a soft pastel palette, lo-fi piano themes per ghost.”
“A story RPG set in a 24-hour diner. The encounters are regulars I serve through one long shift. Mercy is ‘listen, refill, comp the pie.’ Hand-drawn ink art, jazz-piano themes per customer.”
“A story RPG where I am a kid lost in a forest of spirits. Each encounter is a spirit with their own theme and grievance; mercy is ‘apologize, gift, sing along.’ Watercolor pixel art, choir-led themes.”
| Approach | Chatforce | Ren’Py | Single-tool stack | Claude / ChatGPT + engine |
|---|---|---|---|---|
| Multi-agent team | Yes: 4 specialists | No: author-only | No: per-tool | One model |
| No scripting language required | Yes | No: Ren’Py script | Mixed | No |
| Branching dialogue + multiple endings | Yes | Yes | Manual | Manual |
| Original character sprites included | Yes: expression variants | BYO | Per-tool | BYO |
| Original music + SFX included | Yes: original score + SFX | BYO | Per-tool | BYO |
| Browser-playable output | Yes: one URL | Desktop + web export | Manual | Manual |
| Iteration speed | Seconds: chat | Slow: script editing | Slow: tool-switching | Medium |
| Granular script-level control | Via chat | Full control | Varies | Full control |
| Starting price | Free + bonus credits, $20/mo | Free | Varies | From $20/mo |
Yes. Chatforce combines the Top-Down Overworld engine (for walking around towns) with the Visual Novel / Management Sim engine (for dialog, menus, and the fight-or-spare combat flow). You will not match Toby Fox’s years of writing in a session, but a playable overworld with three towns, named NPCs, and a fight-or-spare encounter is the right size for a Chatforce build.
Top-Down Overworld for the exploration plus Visual Novel / Management Sim for the dialog-heavy combat menus. The Coder agent fuses the two into Undertale’s exact pattern: walk around, bump into an enemy, enter a menu-driven combat with mercy as a real option.
A first playable build with one overworld town, three NPCs, two combats, and a fight-or-spare branch takes a single Chatforce session. Adding more towns, named NPCs, and multiple endings is the iterative second pass.
Pixel art is Undertale’s signature, and the Artist handles it natively. Hand-drawn ink, manga style, cute chibi-2D, or modern flat all also work. Character consistency matters more than style, and the Artist keeps your whole cast on-model.
Yes. Every Chatforce game lives at a shareable URL. Send a link, and players play in their browser.
No. Your game runs in any browser. Browser-playable, link-shareable, no installer for you or your players.
Describe a story RPG in one sentence. Watch the Artist draw your cast, then the team wire their themes and dialog.
Build a Game for Free
Game guideGames Like TerrariaA 2D sandbox of exploration, gathering, and combat across a big world.
Game guideGames Like Hollow KnightAn atmospheric metroidvania with tight controls and reward-rich exploration.
Game guideGames Like Cookie ClickerThe pure incremental loop: numbers go up, upgrades compound, you keep going.
Game guideGames Like Slay the SpireA roguelike deck-builder with run-by-run progression and unlock loops.
Game guideGames Like Vampire SurvivorsAn auto-firing survivor game where swarms grow and upgrades snowball.
Game guideGames Like CelestePrecision platforming, single-screen challenges, and quiet story beats in between.
