October 8–11, 2026
Hofraithe Rosenthal
Hessen, Germany
(~ 1.5h from Frankfurt a. M.)
Hofraithe Rosenthal
Hessen, Germany
(~ 1.5h from Frankfurt a. M.)
The project group ESA of the non-profit association for the promotion of fantastic culture Nexus e. V. invites you to Cauldron 2025 – the OSR Euro Con! From October 8th to 11th we will meet at Hofraithe Park Rosenthal, near Frankfurt am Main, for a weekend full of games, socializing and exchange.
We remain true to the Berlin system of the founding fathers of Nexus: all game rounds begin and end at the same time. Between the game round blocks are breaks, where food intake and smaller program points can take place.
Thursday, Oct 8 2026 |
|
| From 3:00 pm | Coffee and cake |
| 4:00 to 7:00 pm | Block I Sidekick |
| 7:00 to 8:00 pm | Dinner |
| From 8:00 pm | Block II |
Friday, Oct 9 2026 |
|
| 8:00 to 9:00 am | Breakfast |
| 9:00 am to 1:00 pm | Block I |
| 1:00 to 3:00 pm | Lunch |
| 3:00 to 7:00 pm | Block II |
| 7:00 to 8:00 pm | Dinner |
| 8:00 to 9:30 pm | Auction |
| From 8:00 pm | Block III |
Saturday, Oct 10 2026 |
|
| 8:00 to 9:00 am | Breakfast |
| 9:00 am to 1:00 pm | Block I |
| 1:00 to 3:00 pm | Lunch |
| 3:00 to 7:00 pm | Block II |
| 7:00 to 8:00 pm | Dinner |
| 8:00 to 9:30 pm | Auction |
| From 9:30 pm | Block III |
Sunday, Oct 11 2026 |
|
| 8:00 to 9:00 am | Breakfast |
| Until 10:00 am | Clear rooms |
| 10:00 to 10:30 am | Award ceremony |
| 10:30 am to 2:00 pm | Block I |
| Until 2:00 pm | Departure |
The blocks are usually four hours long and encourage small, self-contained rounds of games and missions. There is no pre-registration for players – the game rounds are posted one hour before the start of the block, and registration takes place on site.
Cauldron is all about old-school roleplaying – or to be precise: about the first edition of AD&D (Advanced Dungeons & Dragons, the successor and predecessor of D&D). This includes the various clones, replicas and adaptations.
This means that characters can be transferred and used across different game rounds.
AD&D allows for a wide range of play styles and adventures, all of which we would like to experience at the con. We are therefore especially looking forward to your registration as game masters! Whether you bring your own world, self-made dungeons and adventures, or a classic module you’ve always wanted to DM – everything is welcome!
View DM informationThe registration for Cauldron is done via the external tool EasyCon. By clicking on the button you will be redirected to the registration page.