Digimon Story Cyber Sleuth game overview and Digimon guide
Digimon Story: Cyber Sleuth launched in the West with 249 Digimon on PS4 and PS Vita. Hacker’s Memory featured 320, and the Complete Edition on Switch and PC adds 92 Hacker’s Memory Digimon to the original 249, bringing both stories up to a shared roster of 341. This data sheet covers how the games sort Digimon, how scanning and digivolving work, the starters, and the headline picks players hunt for, Alphamon and Terriermon included.
The Cyber Sleuth games and how many Digimon each one has
Before you check a requirement or a roster, confirm which version you own. The Cyber Sleuth family spans three releases, and the roster grew with each one. A guide written for the 2016 PS4 game can miss Digimon that the Complete Edition added to both campaigns.
| Release | Platforms | Launch window | Digimon roster |
|---|---|---|---|
| Digimon Story: Cyber Sleuth | PS Vita (Japan), PS4 and PS Vita (West) | 2015 Japan, February 2016 West | 249 |
| Digimon Story: Cyber Sleuth Hacker’s Memory | PS4, PS Vita | December 2017 Japan, January 2018 West | 320 |
| Digimon Story: Cyber Sleuth Complete Edition | Nintendo Switch, PC (Steam) | October 2019 | 341 across both stories |
The Complete Edition includes both full campaigns in one package. The original Cyber Sleuth story also gains access to the larger Hacker’s Memory roster, so you can raise Digimon in the first game that never appeared in it on PS4. If you plan to play on PS5, the PS4 versions run through backward compatibility. The Switch and Steam builds are the only way to get both stories and the full 341 in a single Western release.
Developer Media.Vision handled all three, with Bandai Namco publishing. The same team later made the 2025 follow-up. Our Digimon Story Time Stranger complete game overview covers how that game reworks this formula.
What the game is about, in one minute
Cyber Sleuth is set in a near-future Tokyo where everyone logs into EDEN, a cyberspace network. You play Takumi Aiba or Ami Aiba. After a hacking incident leaves you half-digital, you start working cases at the Kuremi Detective Agency for the eccentric Kyoko Kuremi. Your main companions are Nokia Shiramine, whose partners are Agumon and Gabumon, and Arata Sanada, a hacker with a sharp tongue and a good heart.
Hacker’s Memory runs alongside those events. It follows Keisuke Amasawa, who is framed for a crime after his EDEN account is stolen and falls in with the hacker team Hudie, led by Yuugo. You visit many of the same places from a different angle. The sequel also adds Domination Battles, turf fights over EDEN territory between hacker teams.
Both campaigns use the same battle and raising systems. Everything below applies to all three releases unless we say otherwise.
How Cyber Sleuth sorts its Digimon
Levels
The game uses the English level names you know from the dub. It also splits the baby stage into two tiers. Here is how the game’s levels line up with the Japanese terms from the Digimon Reference Book:
| Level in Cyber Sleuth | Japanese term | What it means for you |
|---|---|---|
| In-Training I | Baby I | Hatched from Digi-Eggs; very weak, quick to digivolve |
| In-Training II | Baby II | Bridge stage before Rookie |
| Rookie | Child | Starters and most early scans |
| Champion | Adult | Your first real power spike |
| Ultimate | Perfect | Mid-game backbone, more skill variety |
| Mega | Ultimate | Endgame tier: Royal Knights, Demon Lords, legends |
The Japanese “Ultimate” equals the English “Mega.” That is why older forum posts sometimes seem to contradict themselves. The game also files a small number of special forms outside this ladder, so check each Digimon’s level on its own field guide page before planning around it.
Attributes and elements
Attributes decide damage multipliers, and the triangle is the one the franchise has used for decades:
| Attribute | Strong against | Weak against |
|---|---|---|
| Vaccine | Virus | Data |
| Data | Vaccine | Virus |
| Virus | Data | Vaccine |
| Free | Neutral to all | Neutral to all |
Elements stack on top of attributes. Cyber Sleuth uses Fire, Water, Plant, Electric, Earth, Wind, Light, Dark and Neutral, and each Digimon has its own elemental weaknesses and resistances shown in battle. Hit a Virus enemy with a Vaccine Digimon using a move it is weak to, and fights that felt like a wall start ending in two turns.
Free Digimon sit outside the triangle entirely. No matchup punishes them, which makes them steady party anchors when you don’t know what a dungeon holds.
Memory
Every Digimon costs Memory to keep in your active party, and your party has a Memory cap. Megas cost far more than Rookies. Early on, you will often field two strong Ultimates over one Mega because the Memory math forces it. The cap rises as you progress, and planning around it is a big part of building a team.
How you actually get Digimon
Cyber Sleuth makes collecting feel good. Instead of catching Digimon, you scan them in battle and rebuild them at the DigiLab.
How to add a new Digimon to your roster in Cyber Sleuth
- Fight the Digimon you want in battle.
- Each encounter raises its scan percentage.
- Reach 100% to unlock conversion.
- Open the DigiLab and use DigiConvert.
- Your new Digimon goes to the DigiBank.
Scan percentage can climb to 200%. Converting at a higher scan gives you a stronger starting copy, so for Digimon you plan to keep, it is worth fighting a few more battles.
You can also skip the scan and digivolve a Digimon you already own into the one you want. That is the only way to reach most Megas, since few of them appear in the wild early enough to matter.
Digivolution requirements
Every Digimon has a Digivolution screen that lists possible next forms and the conditions for each. Requirements draw from:
- Level, which almost every route needs
- Stats such as ATK, DEF, INT and SPD
- ABI (Ability), which rises when you digivolve and de-digivolve
- CAM (Camaraderie), which grows as you use the Digimon
- Key items or story progress for a handful of special Digimon
Dark requirements stay hidden until you meet them or record the Digimon in your Field Guide. If a route looks impossible, check the screen again after a few levels.
Tamer tip
De-digivolving looks like a step backward, but it is how you raise ABI, and ABI gates almost every late-game Mega. Bounce a Digimon down to Rookie and back up a few times early on, and your whole roster’s ceiling goes up for the rest of the game.
DNA Digivolution
Some of the biggest names need two Digimon fused together. The classic example is Omnimon, which you create from WarGreymon and MetalGarurumon. That pairing mirrors Agumon and Gabumon from Digimon Adventure. Both source Digimon must meet their own conditions first, so expect to raise two full lines in parallel.
Starter Digimon and their classic lines
At the start of Cyber Sleuth you pick one of three Rookie partners. None of them locks you into anything, because you can digivolve them along many branches and you will scan dozens more within hours. Still, each one has a well-known route that matches its line in the Digimon Reference Book.
| Starter | Attribute | Classic Champion | Classic Ultimate | Classic Mega |
|---|---|---|---|---|
| Terriermon | Vaccine | Gargomon | Rapidmon | MegaGargomon |
| Palmon | Data | Togemon | Lillymon | Rosemon |
| Hagurumon | Virus | Guardromon | Andromon | HiAndromon |
The three starters cover all three sides of the attribute triangle, so your first pick quietly decides your early matchups. Terriermon gives you a Vaccine start, which makes Virus bosses easier. Hagurumon is the odd one out with its machine line, and it is the pick most players overlook.
Terriermon in Cyber Sleuth
Terriermon is the sentimental favorite, and a big part of why so many players search for Cyber Sleuth Terriermon is that it is a starter. You can have Henry Wong’s partner from the start without hunting it down. Fans who grew up on its “Momentai” catchphrase in Digimon Tamers tend to pick it on instinct, and that is a fine choice.
Its anime line runs from Terriermon to Gargomon, Rapidmon and MegaGargomon, and Cyber Sleuth lets you follow that route. MegaGargomon is a heavy hitter that fits the tank-and-blast role well. Its Memory cost is high though, so plan your party size around it.
Terriermon branches to more than one Champion, as every Rookie in this game does. If you want a Mega that has nothing to do with Tamers, you can steer it elsewhere and come back later through de-digivolution. Nothing you do with a Digimon in Cyber Sleuth is permanent. That is a big part of what makes the raising system so pleasant.
Alphamon in Cyber Sleuth
Alphamon is one of the most-wanted Megas in the series, and searches for Cyber Sleuth Alphamon spike every time a new player reaches the endgame. In Digimon lore, Alphamon occupies the “empty seat” of the Royal Knights: an aloof deterrent to the order who does not appear in normal times. Its classic line runs from Dorumon through its Champion and Ultimate dragon forms to Alphamon, and that is the route the game follows.
Expect Alphamon to be one of the last Digimon you build in a playthrough. Like most Royal Knights, it asks for high level, high ABI and solid stats, and you will usually meet the requirements only after repeated de-digivolution cycles on the Dorumon line. Read the conditions in its Digivolution screen, because they are exact and they differ by version.
Once you have it, Alphamon justifies the grind. As a Vaccine Mega it punishes Virus bosses. Its Royal Knight peers make an obvious late-game core with it if you want a themed team.
Headline Digimon players hunt for
A full Cyber Sleuth Digimon list runs to 341 entries in the Complete Edition, so no single page should try to describe every one in prose. These are the names that come up most in searches and forum threads. Each one has a clear reason for its popularity.
| Digimon | Level | Why players want it |
|---|---|---|
| Alphamon | Mega | Royal Knight, Vaccine, a late-game status symbol |
| Omnimon | Mega | DNA of WarGreymon and MetalGarurumon |
| Gallantmon | Mega | Royal Knight, Guilmon’s final form from Tamers |
| Leopardmon | Mega | Royal Knight (Duftmon in Japan) |
| MirageGaogamon | Mega | Gaomon’s Mega from Digimon Data Squad |
| Ravemon | Mega | Sleek bird warrior, a fan favorite |
| WarGreymon | Mega | Agumon’s anime Mega, half of Omnimon |
| MetalGarurumon | Mega | Gabumon’s anime Mega, the other half |
| Ryudamon | Rookie | Samurai-dragon Rookie with a strong line |
| Sistermon Blanc | Rookie | Popular nun-themed Rookie |
| Sistermon Ciel | Rookie | Sister form, another popular collectible |
Gallantmon and the Guilmon line
Gallantmon (Dukemon) is a Virus-attribute Royal Knight. It follows the same route Guilmon took in the anime: Guilmon to Growlmon to WarGrowlmon to Gallantmon. For many Tamers fans it is the first Mega they target, because the route is easy to read and the payoff is iconic. Its Virus attribute makes it your answer to Data-heavy areas.
Agumon and Gabumon
Nokia’s partners are the emotional heart of the first campaign, and their lines end where the anime’s did. WarGreymon and MetalGarurumon are strong in their own right. Together they unlock Omnimon, which is worth building at least once for the moment of seeing it on screen. In practice you will raise both lines side by side for most of the game.
The Royal Knights in general
The Complete Edition roster includes most of the Royal Knights, and building the whole order is a popular post-game goal. Alphamon, Gallantmon and Leopardmon are the members most searched for. Each has its own demanding requirements, so go in knowing that a full Knight team takes dozens of hours of raising.
Building a good team
You can clear the story with almost any Digimon you love. That is part of the appeal. A few principles make the game much smoother, though.
Cover the attribute triangle. Keep at least one Vaccine, one Data and one Virus Digimon in your active party. Bosses lean on one attribute, and swapping in the right counter does more than any amount of grinding.
Respect Memory. Three Ultimates you can afford beat one Mega you have to bench everyone else for. Move to Megas as your Memory cap grows, not before.
Raise ABI early. Every de-digivolution adds to a Digimon’s ABI potential. Players who skip this hit a wall near the endgame where nothing meets its Mega requirements.
Use the DigiFarm. Digimon left on your farm keep training while you play, so the Digimon in your reserve don’t fall behind.
Grind smart, not long. The Platinum Sukamon and Platinum Numemon family give huge experience. Experienced players feed them into the Digimon they want to level fast instead of fighting hundreds of random battles.
How Cyber Sleuth was received
Critics and players broadly liked Cyber Sleuth. The most common praise went to the roster, the scan-and-convert system and how freely you can reshape any Digimon. The story took longer to win people over. Its early chapters move slowly, and the detective-case structure involves a lot of walking back and forth through the same Tokyo districts.
Hacker’s Memory drew similar comments: more Digimon and a darker story, along with even more reuse of familiar areas. The Complete Edition is the easiest recommendation of the three. It has both stories, the full 341 roster, and it runs on hardware people still own.
On PS4 and PS5, the series sits alongside other anime-licensed RPGs as one of the better ways to spend 60-plus hours with a monster-raising game. Its turn-based combat is approachable, and its depth comes from the raising system rather than from fast reflexes. If you liked Cyber Sleuth’s systems, the Time Stranger Digimon list is the obvious next stop, since that game expands the same raising ideas with a newer roster.
Which version should you play?
Go with the Complete Edition unless you have a specific reason not to. It is the only release that combines both campaigns and the full roster, and it is still sold on Switch and Steam.
Pick the PS4 versions if you already own them or play mainly on PS5 and don’t want a second platform. You will have the smaller rosters in each separate game, but the core experience is the same.
The original PS Vita versions are now mostly a collector’s choice.
FAQ
How many Digimon are in Digimon Story: Cyber Sleuth?
The original Western PS4 and Vita release has 249 Digimon. Hacker’s Memory raises that to 320. The Complete Edition on Switch and PC brings both stories to a shared 341.
Does the Complete Edition Digimon list differ from the PS4 version?
Yes. In the Complete Edition, the first Cyber Sleuth story uses the expanded roster, so you can raise Digimon in that campaign that were exclusive to Hacker’s Memory on PS4.
Can you get Alphamon in Cyber Sleuth?
Yes. Alphamon is a Vaccine-attribute Mega on the Dorumon line. Its requirements are among the steepest in the game, so plan on several de-digivolution cycles to raise ABI before you go for it.
Is Terriermon a starter in Cyber Sleuth?
Yes. In the first campaign you choose between Terriermon, Palmon and Hagurumon. Terriermon is the Vaccine option, and its anime route through Gargomon and Rapidmon to MegaGargomon is available in the game.
What is ABI and why does it matter?
ABI, short for Ability, is a stat that grows when you digivolve and de-digivolve a Digimon. Many Ultimate and most Mega forms need a minimum ABI. If you ignore it, your late-game Digivolution options shrink fast.
How do I make Omnimon?
Omnimon comes from DNA Digivolution of WarGreymon and MetalGarurumon. Raise both Megas, meet their individual requirements, then fuse them from the Digivolution menu at the DigiLab.
