Illystra

The name Illystra is known to only a rare few—those who have traveled the hidden paths between worlds.

Illystra is not a world unto herself. She is the vast outerverse within which countless realms exist, each a self-contained universe occupying its own tier of reality. Every realm is sovereign and largely unseen by the others, with its own histories, civilizations, and possibilities. Together, these infinite realms compose the greater whole that is Illystra.

Although the realms may share familiar peoples, places, and ideas, the Primordial Deities are the only true constants throughout Illystra. The laws of physics, the nature of magic, the systems of faith, and even the fundamental structure of existence may differ from one realm to another.

Travel between realms is almost nonexistent—but hidden pathways do exist. Such paths are exceedingly difficult to find and even harder to open. Only a rare few know of their existence, and fewer still possess the knowledge or power to travel them.

5e House & Alternate Rules

House Rules

Short Rest

Duration:
15 minutes
Restriction:
Once per 4 hours

Skill Check

Natural 1:
−10 to the check
Natural 20:
+10 to the check

Hero Points

  • Add the magic item Aura of the Hero (Hero Points) to your character sheet.
  • Gain 1 Hero Point for each Heroic Action recognized by the DM, up to your character level, with a maximum of 5.
  • Only one Hero Point option may be applied to any single roll or action.

1 HP Heroic Edge

  • Add 1d6 to an attack roll, ability check, or saving throw after the roll but before the result.
  • Turn a failed death saving throw into a success after the roll.
  • Gain Advantage on an ability check, attack roll, or saving throw before the roll.
  • Reroll the damage of an attack, spell, or ability caused by you.

2 HP Heroic Reserve

  • Automatically stabilize or prevent Instant Death.
  • Add your Proficiency Bonus to a roll it would not normally apply to, provided the roll does not require proficiency.
  • Gain one free use of an ability that requires a short rest to regain.

3 HP Heroic Renewal

  • Regain ability uses as though you had taken a short rest, without gaining any other short-rest benefits.
  • Gain one free use of an ability that requires a long rest to regain.

5 HP Legendary Moment

  • Take an additional turn.
  • Regain ability uses as though you had taken a long rest, without gaining any other long-rest benefits.

Combat Action Options

Climb onto a Bigger Creature

This Action Option from the DMG is used.

Disarm

This Action Option from the DMG is used.

Mark

This Action Option from the DMG is used.

Overrun

When a creature tries to move through a hostile creature's space, the mover can attempt to force its way through. As an action or bonus action, the mover makes a Strength (Athletics) check contested by the hostile creature's Strength (Athletics) check. The mover has Advantage if it is larger than the hostile creature, or Disadvantage if it is smaller. If the mover wins, it can move through the hostile creature's space once this turn.

If the mover rolls lower than the hostile creature, the hostile creature may make an opportunity attack against the mover.

Shove Aside

This Action Option from the DMG is used.

Tumbling

A creature can attempt to tumble through a hostile creature's space by ducking and weaving past it. As an action or bonus action, the tumbler makes a Dexterity (Acrobatics) check contested by the hostile creature's Dexterity (Acrobatics) check. If the tumbler wins, it can move through the hostile creature's space once this turn.

If the tumbler rolls lower than the hostile creature, the hostile creature may make an opportunity attack against the tumbler.

Krynn

  • Alias - Dragonland

Maps

Modules

  • Shadow of the Dragon Queen (ADV 2023-2025)

World Reference Sites

Faerun

  • Alias - Forgotten Realms

Maps

Campaigns

Modules

  • Watterdeep: Dragon Heist (ADV 2025-current)
  • The Wild Beyond the Witchlight (ADV 2025-current)

World Reference Sites

Earth

  • Alias - Deadlands (Wild West Timeline)
  • Alias - Superheros (Superhero Timeline)
  • Alias - Vampires (World of Darkness Timeline)
  • Alias - Shadowrun (Cyberpunk Timeline)

Maps

Wild West Timeline

Superhero Timeline

Cyberpunk Timeline

Modules

  • Deadlands - Devil’s Night (ADV 2023)
  • Sentinals - Issue 1 - Freedom Five #801 (ADV 2023)
  • Sentinals - Issue 2 - Freedom Five #802 (ADV 2023)
  • Sentinals - Issue 6 - Freedom Five #803 (ADV 2023)
  • Sentinals - Issue 345 - Justice Comics #740 (ADV 2023)
  • Sentinals - Issue 345 - Prime Wardens #86 (ADV 2023)
  • Sentinals - Issue 345 - Tome of the Bizarre #86 (ADV 2023)

World Reference Sites

TobinsRest

  • Alias - Embor

Maps

Campaigns

World Reference Sites

Other Realms

Maps

Campaigns

Modules

  • Uni and the Hunt for the Lost Horn (ADV 2025)

World Reference Sites

Primordials

These Primordial beings existed before the birth of any civilization. Across the countless realms of Illystra, their names and forms may differ, but their presence remains constant.

Domains and Aspects

Nature and Worship

    Celestial Lore

    Game System Resources

    Interactive World Maps