What Unlocks When

Every feature in the game and the chapter that opens it, so you know what you are heading towards and what is still locked for a reason.

Read the number as a signpost, not a stopwatch. A few features open one chapter after the number shown, and one or two want something small besides the chapter. Where that matters it is called out below.

Normal chapters

Chapter	Unlocks	What it is
3	Tower	A solo climb. Each floor is a fresh fight and the rewards scale with depth.
4	Gem Dungeon	The gem farm, and gems are what spins cost.
4	Pets	Your first pet. Pets fight beside you and bring their own skills.
5	Arena	PvP against other players' defences, with a weekly ladder.
5	Artifacts	Passive relics with set bonuses, levelled with their own currency.
5	Pet Dungeon	Pet food and pet upgrade materials.
6	Dungeon Dive	A descending run. How deep you get is tracked on your account.
6	Star Challenges	Per-chapter objectives that pay stars for clearing under restrictions.
7	Guilds	Everything guild-shaped hangs off this: raid, conquest, vault, chat and donations.
7	Heroes	Swapping your character. Before this you play the default Rogue.
11	Elite Chapters	The harder rerun of the campaign, tracked separately from normal.
13	Hero Synergy	Bonuses from the heroes you are NOT playing, so a benched hero still counts.
14	Sticker Album	The collection book. Finishing it pays a hero and a large gem sum.
18	Dojo	The weekly belt ladder, a separate PvP track from Arena.
21	Runes	Sockets for your gear. A lot of late damage lives here.
25	Auto Roll	Automatic re-rolling, so you stop tapping for every attempt.
35	Pet Build	Rolling pet powers and substats. Deep, and expensive.
40	Equipment Awakening	Turning an S-tier item into its SS form. The longest gate in the game.

Elite chapters

Both skill trees sit behind Elite chapters, not normal ones. Elite is its own ladder that only starts once you are deep into the campaign, so these arrive much later than the numbers make them look.

Elite	Unlocks	What it is
5	Adventure Skill Tree	The first permanent tree, bought with Adventure Journals.
11	Specialization Skill Tree	The second permanent tree, bought with Specialization Journals.

New worlds

Normal and Elite	Unlocks	What it is
80 and 50	Heliora (World 2)	A new world on the World Map. It needs both: normal chapter 80 and Elite chapter 50.

Slots that keep opening

Chapters	Unlocks	What it is
12 / 30 / 60	Sentinel combat skill slots	Each slot lets your sentinel carry one more combat skill.
15 / 25 / 55	Mount combat skill slots	Each slot lets your mount carry one more combat skill.

Worth knowing before you spend

Hero shards are not a hero. You cannot spend them until Heroes unlocks, so buying a hero's shards early leaves you holding currency you have no use for yet.
Runes, mounts and the album hand you the first one. The rune key, the starter mount and your first stickers arrive with the feature, so there is nothing to prepare beforehand.
Arena wants you to have played it. Reaching the chapter shows the mode; earning your first arena points is what settles it in place.

Chapter numbers come from the live game config.