Fallen Souls: Idle RPG is a dark-fantasy idle game from Peraspera Games that hands you a large army and keeps it fighting even while you are away. The centerpiece is a 30-slot battlefield you fill with five heroes and 25 soldiers, with a separate goddess unit supporting the whole team from outside the grid. It is out now on Android, with a Windows build and iOS release also available.
Quick answer: Place your 5 heroes and 25 soldiers across the 30 slots so their skills line up, deploy one goddess for team-wide buffs, and merge duplicate soldiers to push them into higher tiers that hit harder.
What fills the 30-slot battlefield
The formation grid holds 30 units in total. Five of those are heroes, each with a defined role and its own skill set, and the remaining 25 are soldiers you position around them. Placement matters because a hero’s abilities work best when the soldiers near it support that role, so the grid is less about filling every slot and more about arranging synergies.
Goddesses sit apart from the 30-slot grid as an extra unit. Instead of occupying a battlefield slot, a deployed goddess provides buffs and special abilities that apply to your entire team. Developing bonds with your units strengthens the rest of the formation as well.
| Unit type | Count | Role |
|---|---|---|
| Heroes | 5 | Each has a specific role and skills; time their ultimates in combat |
| Soldiers | 25 | Placed around heroes to trigger synergies; can be merged into higher tiers |
| Goddess | 1 (off-grid) | Supports the whole team with buffs and special abilities |
Merging soldiers into stronger tiers
Soldiers grow through merging. Combining matching troops unlocks a higher-tier unit that deals more damage and takes on new visuals. This is the main way you raise the raw output of your 25-strong line before you even consider hero skills, so pushing soldiers up the tiers is a steady part of building the formation.
Base building and what it unlocks
Between battles, you construct and upgrade facilities at your base. Each building opens up a system rather than just adding a number. Upgrades unlock recruitment, artifact crafting, soldier upgrades, and more advanced gameplay modes, and they also speed up your overall progression.
Because the game runs on idle progress, you keep earning rewards while offline. The strategy comes back into play when you return, since combat and growth still ask for real decisions like where to place units and when to fire a hero’s ultimate.
Co-op dungeons and other modes
You do not have to manage the larger fights alone. Real-time co-op dungeons let you team up with friends and other players to clear tougher stages, coordinate tactics, and claim better loot. Beyond co-op, the game spreads content across story chapters, boss challenges, tower trials, resource dungeons, and seasonal events, all set in a forgotten realm trapped in eternal night.
Redeem codes for free rewards
Gift codes drop free diamonds, gold, and progression items. They are time-limited, so redeem them as soon as you can. These codes are active right now:
| Code | Reward |
|---|---|
| NewOpenofFS | Free rewards |
| EndlessYouth | Free rewards (expires August 18, 2026) |
| OneWeekJiwa | 300 Diamonds, 5 Advanced Fruit, 3 1h Gold |
| JiwaforDC | 500 Diamonds, 3 Advanced Fruit, 3 1h Gold |
| JiwaforFB | 500 Diamonds, 3 Advanced Fruit, 3 1h Gold |
| JiwaNewStart | 200 Diamonds, 5 Advanced Fruit, 10 Star Core |
Note: Codes are case-sensitive. If one fails, it has likely expired, since each code stops working after its window closes.
Where to download and platforms
Fallen Souls: Idle RPG is free to play with in-app purchases. On Android it is available now through the Play Store, and there is also a Windows build powered by Intel technology. The iOS version requires iOS 15.0 or later and carries a 16+ age rating for loot boxes and in-game chat. New players are offered a starter bundle that includes all heroes and 3,400 draws as progress rewards.
For something with a lighter management load, plenty of idle and tactical RPGs on Android ask you to command far fewer than 30 units at once. But if the appeal here is arranging a full army and letting it fight while you step away, the formation grid and merge systems are where most of your attention will go.
