Gate of Nightmares is a role-playing game that is designed in the Japanese anime style. You have to summon your favorite characters to create an ultimate squad and battle against a huge number of enemies. You have to use your attacks wisely to counter the powerful monsters. You can play the tutorial levels at the start of the game which will help you to prepare for the battles.
In the following list, the characters of Gate of Nightmares are categorized into different tiers. The best characters in tier SS are Tom and Lumina while Lucy and Nats rank in the S tier. Mallow and Zeegyll are the most popular characters in the A tier. Some characters in tier B are Leonis and Allen.
SS Tier
| Characters | Tier |
| Tom | SS |
| Lumina | SS |
| Mayfan | SS |
| Elena Maria | SS |
S Tier
| Characters | Tier |
| Lucy | S |
| Nats | S |
| Estio | S |
| Olivia | S |
| Abigail | S |
| Mercaria | S |
A Tier
| Characters | Tier |
| Mallow | A |
| Zeegyll | A |
| Barcherio | A |
| Liliana | A |
| Merle | A |
B Tier
| Characters | Tier |
| Leonis | B |
| Allen | B |
| Beatrix | B |
| Celina | B |