Savior of Senia

Savior of Senia is a free browser-based d20 roguelite RPG. No download, no account — just open the game and start playing. Your progress is saved in your browser automatically and can optionally be synced to the cloud with a save code.

Each run you pick a profession, explore a map of rooms, fight enemies with dice rolls, collect loot and copper, and face a boss at the end. Between runs you keep your copper, equipment, and any permanent upgrades. The game never ends — there are always more achievements to earn, bosses to defeat, and ranks to climb.

When you first open the game you'll see two options: New Game to create a fresh profile, or Restore existing save to load a previous cloud save. For a new game, you'll be asked for your Adventurer Name and a PIN. Your name appears on the home screen and in your save code. Your PIN protects your cloud save.

The home screen is your hub between runs. Everything is managed from here.

1. Choose a Profession — Each has different starting HP, a stat bonus, and a starting item.
2. Enter the Map — A random layout of rooms is generated. You need to complete 3 rooms before the boss unlocks.
3. Enter Rooms — Each room has a type (Combat, Event, Hazard, Treasure, Lore). Most require a dice roll.
4. Roll the d20 — Choose a stat to apply, then roll. The outcome (Critical/Success/Mixed/Failure) determines your HP loss and rewards.
5. Collect Loot & Copper — Successful rolls earn copper and sometimes items.
6. Face the Boss — Once 3 rooms are done, the boss room unlocks. Bosses have multiple phases.
7. Victory or Death — Win the boss fight to complete the run and bank all earned copper. If you die, copper from the run is still banked.

Choose your profession at the start of each run. Your choice determines starting HP, one free stat bonus, and your starting item. All professions can equip any gear between runs.

Each run generates a random map from one of six layouts (named T, H, O, E, N, W after their shapes). Every map has exactly 4 non-boss rooms plus a boss room. You choose your path — but you must complete at least 3 rooms before the boss unlocks.

Bosses are the final challenge of each run. They have multiple phases — each phase advances when their HP drops below a threshold. Bosses get harder the more you defeat them.

Difficulty starts at 1 and increases by 1 for every 3 boss victories, capping at 4. Your own stats also boost the boss — the stronger you get, the tougher your enemies become.

Every roll uses one of four stats. Your stat value is added to the d20 roll, increasing your chance of a good outcome.

Stats are built up from multiple sources:

When you enter a room, you roll a virtual d20. Your chosen stat is added to the result, then the room's resistance is subtracted. The final number determines your outcome.

Boss fights work like combat rooms but with higher stakes. Bosses have multiple phases — each phase they adapt. The boss also resists your stats based on their template, so spreading your stat investment can help.

Consumables are single-use items carried in your Pack. They can be used in rooms as an action (instead of rolling a stat), or some trigger automatically.

Relics and keys are powerful items that can only be found as loot drops — they are not sold in the shop. They go into your Pack when found mid-run.

Equipment slots hold stat-boosting gear that persists across every run. You can have up to 3 slots active. These don't take Pack space — they're always active.

Physical armor fills six body slots and permanently reduces incoming damage. Armor pieces are purchased in the shop or found as drops. They don't take Pack space — they're always active once equipped.

Boss armor is collected as permanent flags (not inventory items) by fighting bosses repeatedly. Each boss has a unique 6-piece set. Collecting pieces and completing sets grants AP, stat bonuses, and a Hero Title.

Each piece has a 12% drop chance when a boss phase advances. Chance Encounters have a 15% drop chance on a Critical.

Currency tiers: 100 copper = 1 silver. 100 silver (10,000 copper) = 1 gold. Large amounts display as gold/silver/copper (e.g. 1g 5s 30c).

The shop is available between runs from the home screen. Buy consumables, armor, and equipment. Manage your pack, stash, and bank.

Physical armor pieces can be sold from the bank for a 5% copper refund of their shop value. Not a great return, but useful for clearing space.

Achievement Points (AP) measure your long-term progress in Savior of Senia. AP is earned by completing milestones — not by running well in a single game. The maximum possible AP is 498 AP.

Your AP total determines your Glory Rank, shown as a glowing dot next to your name on the home screen. Ranks are a badge of how much of the game you've explored.

AP comes from seven categories of achievements:

Run Milestones — up to 116 AP

Complete 1, 5, 10, 20, 50, 100, 150, 200, 300, 400, or 500 total runs. Each milestone earns AP. This is the biggest long-term AP source — keep playing.

Boss Encounters — up to 10 AP

Encountering each story enemy for the first time earns 1 AP. Simply entering the fight — win or lose — counts.

Boss Victories — up to 50 AP

Defeating each story boss for the first time earns 5 AP per boss.

Calendar Milestones — up to 50 AP

Simply visiting the game on different days over time earns AP: play on every day of the week (7 AP), every calendar date 1–31 (31 AP), and in every month of the year (12 AP). These accumulate passively the longer you play.

Class Mastery — up to 120 AP

Defeat each boss with each of the 6 professions. 10 bosses × 6 professions × 2 AP = 120 AP. This is the largest single category — there's a huge variety challenge here.

Boss Armor — up to 27 AP

Earn 1 AP per boss armor piece collected (24 total), plus 3 bonus AP for each complete 6-piece set (4 sets).

Banners — up to 30 AP

Purchase permanent banners in the shop. Each banner grants AP and a permanent stat bonus.

Supply Mastery — up to 70 AP

Buy each type of consumable from the shop. Earn 1 AP per purchase, up to 10 purchases per item type (7 item types).

Armor Shop — up to 18 AP

Milestones for total armor pieces purchased: 1, 6, 12, and 24 purchases.

Letters — up to 13 AP

Collect all 13 letters. Each letter unlocked earns 1 AP.

Your Gold Rank is based on your lifetime copper earned across all runs. It's a measure of economic progress — the more you play and loot, the higher your rank climbs. Unlike Glory Rank, it never resets.

There are 13 sealed letters hidden throughout your journey. Each one tells part of the unfolding story of Senia. Letters are unlocked by reaching certain milestones — some by completing enough runs, others by defeating specific bosses.

Unlocked letters appear on the home screen. Tap any revealed letter to read it. Each letter earns 1 AP when first unlocked.

Your progress saves automatically to your browser's local storage after every action. You don't need to do anything — it's always saved locally.

Cloud Sync is optional. It allows you to back up your save to Cloudflare's edge network and restore it on another device. Cloud sync uses a save code and PIN to identify and protect your save.

Your save code is shown on the home screen in the collapsed Save Code panel. It looks like: XXX-XXX-YYY-PPPP

The last four characters are your PIN. Keep your code private — anyone with your code and PIN can access your cloud save.

• Start with Guardian for the highest base HP — it gives you the most room for mistakes.
• Iron Rations and Health Potions are cheap. Keep a few in your stash before every run.
• Pick your best stat every time you can — a reliable +2 or +3 beats a random stat.
• Don't save your Death Token — if you have one, it'll save you automatically. It's worth buying every run.
• Lore rooms are free copper. Never skip them unless HP is critical.
• The shop gets more expensive as you accumulate gold. Spend copper on banners and armor to keep prices down.

• Class Mastery is the biggest AP source (120 AP). Rotate professions deliberately — try to defeat each boss with each profession over time.
• Buy consumables regularly — Supply Mastery (70 AP) requires buying 10 of each item type. Spread purchases across all 7 types.
• Run count matters more than run quality for milestone AP. Even runs where you die count toward the total.
• Boss armor drops passively — just keep fighting bosses and pieces accumulate. Don't grind specifically for it.
• Chance Encounters give a small bonus chance for boss armor. Worth doing whenever available.

Stats stack from multiple sources. Planning your stat investment matters more in later difficulty levels when boss resistance becomes significant.

• Equipment slots are capped at +4 per stat. Don't stack the same stat past that.
• Bosses have resistances that vary by encounter — high Guile isn't always the answer.
• Full boss armor sets grant passive stat bonuses — they're worth completing.
• A Ley Crystal in your pack doubles your stat modifier on one roll — save it for a boss.