// Round-100 Tracker · Data basis

Research & Sources

Why does every map have its own XP multiplier? All data, formulas and sources — transparent.

As of: 18.08.202663 Maps (58 eligible) · 9 Gamesall formulas verifiable

How the difficulty multiplier is created

Each map gets its own XP multiplier from three inputs: the length of the solo-100 speedrun world record, a community consensus score, and a cross-game era factor. The formula is deterministic — same inputs always produce the same value.

Formula

map_index      = 0.6 × minmax(wr_hours) + 0.4 × minmax(community_score)
map_multiplier = min(3.0, game_factor × (0.75 + 0.5 × map_index))

minmax() normalizes per game to 0–1: (value - min) / (max - min). If a map has no WR, only the community share counts; if a game has no spread (all scores equal), 0.5 is used. Result is capped at 3.0.

wr_hours

Solo-100 speedrun world record on zwr.gg — longer means harder. Only comparable within the same game: WAW Nacht der Untoten 1.83 h vs. BO1 remake 22.88 h shows the mechanics differences across eras.

community_score

Community consensus from 1 (easy) to 10 (very hard), derived from Reddit tier lists, forums and YouTube analyses — see Sources.

game_factor

Cross-game era factor, normalized to BOCW = 1.0:

WAW 2.60BO1 3.00BO2 1.90BO3 1.30/mega 1.60BO4 1.50/mega 1.90BOCW 0.80Vanguard 1.30BO6 1.15BO7 1.15 · provisional

Calculation — Ascension (BO1)

wr_min    = 5.45 h   (Moon)
wr_max    = 22.88 h  (Nacht der Untoten Remake)

wr_index   = (5.77 - 5.45) / (22.88 - 5.45)   = 0.0184
comm_index = (5 - 4) / (9 - 4)                = 0.2
map_index  = 0.6 × 0.0184 + 0.4 × 0.2         = 0.091

map_multiplier = min(3.0, 3.0 × (0.75 + 0.5 × 0.091))
               = 2.387

Ascension (BO1): WR 5.77 h, Score 5, Factor 3.0 →

2.387

In practice: Round 20 on Ascension → 153 XP, Round 50 → 2.387 XP (mastery bonus 0).

Known divergences — intentionally left as is

Buried (BO2)

Community-easiest map (Score 2), but slow solo-100 WR (5.75 h — safe rather than optimized strats). The WR share (0.6) pushes the multiplier above Die Rise: 1.848 vs. 1.642. Intentionally kept: the formula is transparent and has no special cases.

Nuketown Zombies (BO2)

No solo-100 speedrun listed on zwr.gg, so only the community score (8) counts → formula would give 2.375. As an especially iconic and demanding map, Nuketown was intentionally overridden to the cap 3.000 — a documented exception to the formula.

BO7 (provisional)

No data: release Nov 2025, last map Aug 2026 — neither WR consensus nor reliable community scores. All 6 maps share the provisional value 1.150 until data is sufficient.

XP Formula

How much XP a session earns comes from three factors: round, map multiplier and personal best on that map. Plus the level curve that defines all thresholds.

Formulas

session_XP = 10 × round^1.3 × map_multiplier
             × (1 + 0.02 × best_round)

XP to level L = 100 × (L − 1)^2.3 × (1 + 0.15 × prestige)

Rounds scale superlinearly: (80/20)^1.3 ≈ 6.1× — round 80 yields about 6.1× as much base XP as round 20. High rounds are not only harder, they are significantly more rewarding.
Harder maps multiply stronger: the map multiplier (Section 01) applies directly to every session — a map at 2.9 earns almost three times as much XP as one at 1.0.
Mastery bonus rewards depth over map-hopping: each point of your personal best on that map grants 2 % bonus (best 100 → +100 %). Replaying maps and pushing records pays off permanently — switching does not.

Base XP per round (multiplier 1.0 · mastery 0)

Round	Base XP
10	8
20	64
50	1.000
80	4.096
100	8.000

Implementation: lib/xp.ts — identical formulas throughout the app. The superlinear curve follows the goal-gradient principle (Kivetz et al., 2006; see Sources).

All 63 Maps — Multipliers in detail (58 eligible)

Complete overview in canonical order per game. Each multiplier is computed live from raw data — change a WR and the value updates automatically. 5 maps (Nuketown, Call of the Dead, Bus Depot, Town, Farm) are excluded from round-100 (survival).

not owned— = no solo-100 WR listed (tooltip explains why)multiplier color: harder map → warmer

Map	Game	WR Solo-100 (h)	Community Score (1–10)	Game Factor	Multiplier
World at War 4 mapsFactor 2.60
Nacht der Untoten	WAW	1.83	9/10	2.60	2.584
Verrückt	WAW	1.45	7/10	2.60	2.324
Shi No Numa	WAW	0.99	5/10	2.60	2.054
Der Riese	WAW	6.76	4/10	2.60	2.730
Black Ops 1 10 mapsFactor 3.00
Kino der Toten	BO1	6.55	6/10	3.00	2.547
Five	BO1	6.33	9/10	3.00	2.895
Ascension	BO1	5.77	5/10	3.00	2.387
Shangri-La	BO1	6.81	8/10	3.00	2.800
Moon	BO1	5.45	7/10	3.00	2.610
Nacht der Untoten (Remake)	BO1	22.88	9/10	3.00	3.000
Verrückt (Remake)	BO1	9.79	8/10	3.00	2.954
Shi No Numa (Remake)	BO1	7.84	6/10	3.00	2.613
Der Riese (Remake)	BO1	5.47	4/10	3.00	2.251
Call of the Dead	BO1	—	6/10	3.00	2.850
Black Ops 2 9 mapsFactor 1.90
TranZit	BO2	6.43	9/10	1.90	2.317
Nuketown Zombies	BO2	—	8/10	1.90	3.000
Die Rise	BO2	2.53	6/10	1.90	1.642
Mob of the Dead	BO2	6.87	4/10	1.90	2.104
Buried	BO2	5.75	2/10	1.90	1.848
Origins	BO2	3.14	7/10	1.90	1.777
Bus Depot	BO2	—	5/10	1.90	1.832
Town	BO2	—	5/10	1.90	1.832
Farm	BO2	—	5/10	1.90	1.832
Black Ops 3 14 mapsFactor 1.30
Shadows of Evil	BO3	2.57	7/10	1.30	1.154
The Giant	BO3	2.83	3/10	1.30	1.000
Der Eisendrache	BO3	3.19	4/10	1.30	1.070
Zetsubou No Shima	BO3	3.83	8/10	1.30	1.290
Gorod Krovi	BO3	4.38	8/10	1.30	1.331
Revelations	BO3	2.76	4/10	1.30	1.038
Nacht der Untoten (Chronicles)	BO3	7.75	8/10	1.60	1.947
Verrückt (Chronicles)	BO3	2.97	9/10	1.60	1.563
Shi No Numa (Chronicles)	BO3	4.25	6/10	1.60	1.520
Kino der Toten (Chronicles)	BO3	2.72	7/10	1.60	1.433
Ascension (Chronicles)	BO3	2.60	4/10	1.60	1.262
Shangri-La (Chronicles)	BO3	3.97	9/10	1.60	1.654
Moon (Chronicles)	BO3	2.50	5/10	1.60	1.307
Origins (Chronicles)	BO3	3.07	7/10	1.60	1.465
Black Ops 4 8 mapsFactor 1.50
IX	BO4	2.11	4/10	1.50	1.295
Voyage of Despair	BO4	3.00	9/10	1.90	2.375
Blood of the Dead	BO4	2.18	7/10	1.90	1.896
Classified	BO4	2.59	6/10	1.50	1.566
Dead of the Night	BO4	2.19	5/10	1.50	1.380
Ancient Evil	BO4	2.29	7/10	1.90	1.940
Alpha Omega	BO4	2.74	8/10	1.90	2.195
Tag der Toten	BO4	1.57	8/10	1.90	1.729
Black Ops Cold War 4 mapsFactor 0.80
Die Maschine	BOCW	1.15	3/10	0.80	0.600
Firebase Z	BOCW	1.83	4/10	0.80	0.880
Mauer der Toten	BOCW	1.24	6/10	0.80	0.752
Forsaken	BOCW	1.38	7/10	0.80	0.841
Vanguard 2 mapsFactor 1.30
Shi No Numa (Reborn) not owned	Vanguard	1.98	7/10	1.30	1.365
The Archon not owned	Vanguard	1.17	8/10	1.30	1.235
Black Ops 6 6 mapsFactor 1.15
Terminus not owned	BO6	1.32	6/10	1.15	1.193
Liberty Falls not owned	BO6	1.31	3/10	1.15	1.050
Citadelle des Morts not owned	BO6	1.16	7/10	1.15	1.146
The Tomb not owned	BO6	0.99	5/10	1.15	0.955
Shattered Veil not owned	BO6	1.08	4/10	1.15	0.961
Reckoning not owned	BO6	1.58	8/10	1.15	1.438
Black Ops 7 6 mapsFactor 1.15
Ashes of the Damned not owned	BO7	—	5/10	1.15	1.150
Astra Malorum not owned	BO7	—	5/10	1.15	1.150
Paradox Junction not owned	BO7	—	5/10	1.15	1.150
Totenreich not owned	BO7	—	5/10	1.15	1.150
Kowakujō not owned	BO7	—	5/10	1.15	1.150
Rex Infernus not owned	BO7	—	5/10	1.15	1.150

Excluded modes

Not every Zombies variant has a round system. These modes are intentionally excluded because the goal “Round 100” does not exist or is not measurable there.

Dead Ops Arcade 1–4

No classic round system — arcade action with lives instead of endless rounds. No round-100 goal possible.

Outbreak (BOCW)

Objective-based: open map, tasks instead of waves, optional exfil after each region.

Vanguard — Der Anfang & Terra Maledicta

Objective-based missions instead of rounds; mandatory exfil after the final step.

MW3 Zombies

Not by Treyarch: extraction shooter with missions and exfil between sectors — no round format.

BO7 Survival Maps

Vandorn Farm, Exit 115, Zarya Cosmodrome, Mars, Eidskallen Lighthouse — fixed waves with time limit, no rounds.

Directed Mode

Guided mode with hard round cap at 15 — replaces endless rounds, therefore excluded for round-100.

Rogue Run

Roguelite: runs with weapon evolution and random paths instead of classic round progression.

Sources

Every number in this system traces back to a source. Access date for all entries: 18.08.2026.

Quantitative data

Targeted, verifiable numbers: speedruns, official announcements, mechanics reports.

zwr.gg — Solo-100 speedrun world records (standard category per game: BO3 Mega GobbleGum, BO4 All Elixirs non-hardcore, BOCW/BO6 Rampage). Source of all wr_hours values — live crawled on 18.08.2026. https://zwr.gg
Call of Duty Blog (callofduty.com) — Official BO6/BO7 announcements: map lists, mode updates and mechanics changes as frame data. https://www.callofduty.com/blog
GameSpot — Reviews and reports on round systems, difficulty tuning and player handicaps per era. https://www.gamespot.com
Dot Esports — Zombies news, patch tracking and community meta reporting on balance changes. https://dotesports.com
IGN — Guides, wiki maintenance and mechanics explanations (including BO6/BO7). https://www.ign.com

Community consensus

Subjective difficulty ratings, cross-checked against multiple independent sources.

Reddit — r/CODZombies — Primary source for community_score (1–10): tier lists, discussions and community difficulty consensus. https://www.reddit.com/r/CODZombies/
GameRant — Zombies rankings and difficulty tier lists as cross-check for consensus. https://gamerant.com
TheGamer — Map rankings and mechanics analyses across all Treyarch titles. https://www.thegamer.com
GameFAQs — Strategy guides and forum consensus on the hardest maps. https://gamefaqs.gamespot.com
Steam Community — Guides and discussions — consensus check especially for newer titles. https://steamcommunity.com
YouTube — MrDalekJD, samuel the 17th, Zombie Dawg, InsomniaVirus — Speedrun analyses, strategy deep dives and map ratings as qualitative cross-check. https://www.youtube.com

Gamification literature

Scientific and practical foundations for formulas and rewards.

Yu-kai Chou — Octalysis — Framework for motivation design (Epic Meaning, Accomplishment, Ownership) — basis for streak and mastery mechanics. https://yukaichou.com
Nunes & Dreze — The Endowed Progress Effect (JCR 2006) — Progress illusion: already credited reward increases completion motivation — basis of the mastery bonus. https://doi.org/10.1086/504480
Kivetz, Urminsky & Zheng — The Goal-Gradient Hypothesis Resurrected (JMR 2006) — The closer to the goal, the stronger the effort — justification for the superlinear round curve (round^1.3). https://doi.org/10.1509/jmkr.43.1.39
Kahneman & Tversky — Prospect Theory / Loss Aversion (1979) — Loss aversion: streak decay and thresholds create attachment to progress. https://doi.org/10.2307/1914185
Deci & Ryan — Self-Determination Theory — Competence and autonomy as intrinsic motivators — the argument for transparent, verifiable formulas. https://selfdeterminationtheory.org
Duolingo & Strava — Case Studies — Streaks, badges and social comparison as models for ranks, emblems and best-round incentives. https://www.duolingo.com

Level & Ranks

Ten rank bands plus General. Thresholds derive from the level curve (Section 02) — shown here with concrete values at Prestige 0.

Rank	Level	XP Threshold (cumulative)
Recruit	1–9	0
Private	10–19	15.659
Corporal	20–29	87.324
Sergeant	30–39	230.949
Staff Sergeant	40–49	456.508
Master Sergeant	50–59	771.704
Lieutenant	60–69	1.182.932
Captain	70–79	1.695.715
Major	80–89	2.314.954
Colonel	90–99	3.045.068
General	100–100	3.890.102

Prestige

From level 100 prestige is optional. All thresholds increase by +15 % per prestige — a prestige does not reset difficulty to zero but raises requirements.
Example: XP to level 50 at Prestige 0 = 771.704 — at Prestige 1 = 887.460.
Each prestige resets level progress and upgrades the emblem next to the name — visible progress beyond levels.
Rank titles apply within a prestige and are noted with the prestige, e.g. “Major (Prestige 2)”.

wr_min = 5.45 h (Moon) wr_max = 22.88 h (Nacht der Untoten Remake) wr_index = (5.77 - 5.45) / (22.88 - 5.45) = 0.0184 comm_index = (5 - 4) / (9 - 4) = 0.2 map_index = 0.6 × 0.0184 + 0.4 × 0.2 = 0.091 map_multiplier = min(3.0, 3.0 × (0.75 + 0.5 × 0.091)) = 2.387

Round

Base XP

1.000

4.096

100

8.000

Map	Game	WR Solo-100 (h)	Community Score (1–10)	Game Factor	Multiplier
World at War 4 mapsFactor 2.60
Nacht der Untoten	WAW	1.83	9/10	2.60	2.584
Verrückt	WAW	1.45	7/10	2.60	2.324
Shi No Numa	WAW	0.99	5/10	2.60	2.054
Der Riese	WAW	6.76	4/10	2.60	2.730
Black Ops 1 10 mapsFactor 3.00
Kino der Toten	BO1	6.55	6/10	3.00	2.547
Five	BO1	6.33	9/10	3.00	2.895
Ascension	BO1	5.77	5/10	3.00	2.387
Shangri-La	BO1	6.81	8/10	3.00	2.800
Moon	BO1	5.45	7/10	3.00	2.610
Nacht der Untoten (Remake)	BO1	22.88	9/10	3.00	3.000
Verrückt (Remake)	BO1	9.79	8/10	3.00	2.954
Shi No Numa (Remake)	BO1	7.84	6/10	3.00	2.613
Der Riese (Remake)	BO1	5.47	4/10	3.00	2.251
Call of the Dead	BO1	—	6/10	3.00	2.850
Black Ops 2 9 mapsFactor 1.90
TranZit	BO2	6.43	9/10	1.90	2.317
Nuketown Zombies	BO2	—	8/10	1.90	3.000
Die Rise	BO2	2.53	6/10	1.90	1.642
Mob of the Dead	BO2	6.87	4/10	1.90	2.104
Buried	BO2	5.75	2/10	1.90	1.848
Origins	BO2	3.14	7/10	1.90	1.777
Bus Depot	BO2	—	5/10	1.90	1.832
Town	BO2	—	5/10	1.90	1.832
Farm	BO2	—	5/10	1.90	1.832
Black Ops 3 14 mapsFactor 1.30
Shadows of Evil	BO3	2.57	7/10	1.30	1.154
The Giant	BO3	2.83	3/10	1.30	1.000
Der Eisendrache	BO3	3.19	4/10	1.30	1.070
Zetsubou No Shima	BO3	3.83	8/10	1.30	1.290
Gorod Krovi	BO3	4.38	8/10	1.30	1.331
Revelations	BO3	2.76	4/10	1.30	1.038
Nacht der Untoten (Chronicles)	BO3	7.75	8/10	1.60	1.947
Verrückt (Chronicles)	BO3	2.97	9/10	1.60	1.563
Shi No Numa (Chronicles)	BO3	4.25	6/10	1.60	1.520
Kino der Toten (Chronicles)	BO3	2.72	7/10	1.60	1.433
Ascension (Chronicles)	BO3	2.60	4/10	1.60	1.262
Shangri-La (Chronicles)	BO3	3.97	9/10	1.60	1.654
Moon (Chronicles)	BO3	2.50	5/10	1.60	1.307
Origins (Chronicles)	BO3	3.07	7/10	1.60	1.465
Black Ops 4 8 mapsFactor 1.50
IX	BO4	2.11	4/10	1.50	1.295
Voyage of Despair	BO4	3.00	9/10	1.90	2.375
Blood of the Dead	BO4	2.18	7/10	1.90	1.896
Classified	BO4	2.59	6/10	1.50	1.566
Dead of the Night	BO4	2.19	5/10	1.50	1.380
Ancient Evil	BO4	2.29	7/10	1.90	1.940
Alpha Omega	BO4	2.74	8/10	1.90	2.195
Tag der Toten	BO4	1.57	8/10	1.90	1.729
Black Ops Cold War 4 mapsFactor 0.80
Die Maschine	BOCW	1.15	3/10	0.80	0.600
Firebase Z	BOCW	1.83	4/10	0.80	0.880
Mauer der Toten	BOCW	1.24	6/10	0.80	0.752
Forsaken	BOCW	1.38	7/10	0.80	0.841
Vanguard 2 mapsFactor 1.30
Shi No Numa (Reborn) not owned	Vanguard	1.98	7/10	1.30	1.365
The Archon not owned	Vanguard	1.17	8/10	1.30	1.235
Black Ops 6 6 mapsFactor 1.15
Terminus not owned	BO6	1.32	6/10	1.15	1.193
Liberty Falls not owned	BO6	1.31	3/10	1.15	1.050
Citadelle des Morts not owned	BO6	1.16	7/10	1.15	1.146
The Tomb not owned	BO6	0.99	5/10	1.15	0.955
Shattered Veil not owned	BO6	1.08	4/10	1.15	0.961
Reckoning not owned	BO6	1.58	8/10	1.15	1.438
Black Ops 7 6 mapsFactor 1.15
Ashes of the Damned not owned	BO7	—	5/10	1.15	1.150
Astra Malorum not owned	BO7	—	5/10	1.15	1.150
Paradox Junction not owned	BO7	—	5/10	1.15	1.150
Totenreich not owned	BO7	—	5/10	1.15	1.150
Kowakujō not owned	BO7	—	5/10	1.15	1.150
Rex Infernus not owned	BO7	—	5/10	1.15	1.150

Map

Game

WR Solo-100 (h)

Community Score (1–10)

Game Factor

Multiplier

World at War

4 mapsFactor 2.60

Nacht der Untoten

WAW

1.83

9/10

2.60

2.584

Verrückt

WAW

1.45

7/10

2.60

2.324

Shi No Numa

WAW

0.99

5/10

2.60

2.054

Der Riese

WAW

6.76

4/10

2.60

2.730

Black Ops 1

10 mapsFactor 3.00

Kino der Toten

BO1

6.55

6/10

3.00

2.547

Five

BO1

6.33

9/10

3.00

2.895

Ascension

BO1

5.77

5/10

3.00

2.387

Shangri-La

BO1

6.81

8/10

3.00

2.800

Moon

BO1

5.45

7/10

3.00

2.610

Nacht der Untoten (Remake)

BO1

22.88

9/10

3.00

3.000

Verrückt (Remake)

BO1

9.79

8/10

3.00

2.954

Shi No Numa (Remake)

BO1

7.84

6/10

3.00

2.613

Der Riese (Remake)

BO1

5.47

4/10

3.00

2.251

Call of the Dead

BO1

—

6/10

3.00

2.850

Black Ops 2

9 mapsFactor 1.90

TranZit

BO2

6.43

9/10

1.90

2.317

Nuketown Zombies

BO2

—

8/10

1.90

3.000

Die Rise

BO2

2.53

6/10

1.90

1.642

Mob of the Dead

BO2

6.87

4/10

1.90

2.104

Buried

BO2

5.75

2/10

1.90

1.848

Origins

BO2

3.14

7/10

1.90

1.777

Bus Depot

BO2

—

5/10

1.90

1.832

Town

BO2

—

5/10

1.90

1.832

Farm

BO2

—

5/10

1.90

1.832

Black Ops 3

14 mapsFactor 1.30

Shadows of Evil

BO3

2.57

7/10

1.30

1.154

The Giant

BO3

2.83

3/10

1.30

1.000

Der Eisendrache

BO3

3.19

4/10

1.30

1.070

Zetsubou No Shima

BO3

3.83

8/10

1.30

1.290

Gorod Krovi

BO3

4.38

8/10

1.30

1.331

Revelations

BO3

2.76

4/10

1.30

1.038

Nacht der Untoten (Chronicles)

BO3

7.75

8/10

1.60

1.947

Verrückt (Chronicles)

BO3

2.97

9/10

1.60

1.563

Shi No Numa (Chronicles)

BO3

4.25

6/10

1.60

1.520

Kino der Toten (Chronicles)

BO3

2.72

7/10

1.60

1.433

Ascension (Chronicles)

BO3

2.60

4/10

1.60

1.262

Shangri-La (Chronicles)

BO3

3.97

9/10

1.60

1.654

Moon (Chronicles)

BO3

2.50

5/10

1.60

1.307

Origins (Chronicles)

BO3

3.07

7/10

1.60

1.465

Black Ops 4

8 mapsFactor 1.50

BO4

2.11

4/10

1.50

1.295

Voyage of Despair

BO4

3.00

9/10

1.90

2.375

Blood of the Dead

BO4

2.18

7/10

1.90

1.896

Classified

BO4

2.59

6/10

1.50

1.566

Dead of the Night

BO4

2.19

5/10

1.50

1.380

Ancient Evil

BO4

2.29

7/10

1.90

1.940

Alpha Omega

BO4

2.74

8/10

1.90

2.195

Tag der Toten

BO4

1.57

8/10

1.90

1.729

Black Ops Cold War

4 mapsFactor 0.80

Die Maschine

BOCW

1.15

3/10

0.80

0.600

Firebase Z

BOCW

1.83

4/10

0.80

0.880

Mauer der Toten

BOCW

1.24

6/10

0.80

0.752

Forsaken

BOCW

1.38

7/10

0.80

0.841

Vanguard

2 mapsFactor 1.30

Shi No Numa (Reborn)

not owned

Vanguard

1.98

7/10

1.30

1.365

The Archon

not owned

Vanguard

1.17

8/10

1.30

1.235

Black Ops 6

6 mapsFactor 1.15

Terminus

not owned

BO6

1.32

6/10

1.15

1.193

Liberty Falls

not owned

BO6

1.31

3/10

1.15

1.050

Citadelle des Morts

not owned

BO6

1.16

7/10

1.15

1.146

The Tomb

not owned

BO6

0.99

5/10

1.15

0.955

Shattered Veil

not owned

BO6

1.08

4/10

1.15

0.961

Reckoning

not owned

BO6

1.58

8/10

1.15

1.438

Black Ops 7

6 mapsFactor 1.15

Ashes of the Damned

not owned

BO7

—

5/10

1.15

1.150

Astra Malorum

not owned

BO7

—

5/10

1.15

1.150

Paradox Junction

not owned

BO7

—

5/10

1.15

1.150

Totenreich

not owned

BO7

—

5/10

1.15

1.150

Kowakujō

not owned

BO7

—

5/10

1.15

1.150

Rex Infernus

not owned

BO7

—

5/10

1.15

1.150

Rank

Level

XP Threshold (cumulative)

Recruit

1–9

Private

10–19

15.659

Corporal

20–29

87.324

Sergeant

30–39

230.949

Staff Sergeant

40–49

456.508

Master Sergeant

50–59

771.704

Lieutenant

60–69

1.182.932

Captain

70–79

1.695.715

Major

80–89

2.314.954

Colonel

90–99

3.045.068

General

100–100

3.890.102