Dergoris 99k

Dergoris 99k
Developer(s)	Demonin
Platform(s)	Web
Release	October 24, 2024
Gameplay info
Next pieces	1
Playfield size	10 × 20
Hold piece	No
Hard drop	Yes (Classic style)
Rotation system	ARS

Dergoris 99k is a browser game created by Demonin and released on October 24, 2024, inspired by the TGM series and classic Tetris games such as Tetris (NES, Nintendo).

Overview

Dergoris 99k has a campaign split into three modes, each of which have a "power level" based on your best game in that mode. All three individual power levels add together to give the player's overall power, which determines their overall grade. The overall grade increases every 3,000 overall power. The maximum overall power that can be achieved is 99,000, awarding the player the GM grade.

Overall grade Conditions

Grade	Required Power	Grade	Required Power	Grade	Required Power	Grade	Required Power
10	0	S1	30,000	M1	60,000	MM	90,000
9	3,000	S2	33,000	M2	63,000	MM*	93,000
8	6,000	S3	36,000	M3	66,000	MM**	96,000
7	9,000	S4	39,000	M4	69,000	GM	99,000
6	12,000	S5	42,000	M5	72,000
5	15,000	S6	45,000	M6	75,000
4	18,000	S7	48,000	M7	78,000
3	21,000	S8	51,000	M8	81,000
2	24,000	S9	54,000	M9	84,000
1	27,000	SS	57,000	MX	87,000

Game modes

There are three campaign modes, called "styles", and a custom game option.

Classic Style

Classic style is designed to be reminiscent of classic Tetris games, taking heavy inspiration from Tetris (NES, Nintendo), but with the TGM-style level system and grading system. Both soft drop and hard drop are enabled for this mode. Classic style uses the same scoring formula as NES Tetris, and has a unique set of grades based on your score.

Grade Conditions

Grade	Required Score
D	0
D+	2,000
C	6,000
C+	12,500
B	24,000
B+	40,000
A	68,000
A+	90,000
S	140,000

The drop speed increases every 100 levels, as does the DAS at levels 300, 600 and 900. Game calculations run at 60 frames/second.

Gravity levels

Level	Frames per cell
0	20
100	17
200	14
300	11
400	8
500	6
600	4
700	3
800	2
900	1.5

Classic style power is based on level reached, average section time, and points, with a maximum of 30,000 towards the player's overall power.

Master Style

Master style is designed to be similar to the original Tetris The Grand Master, but with slight gravity and ARE differences. This style uses the same scoring formula as TGM1, but has a unique set of grades.

Grade Conditions

Grade	Required Score
O	0
O-α	1,200
O-β	3,500
O-γ	5,800
S	8,600
S-α	12,000
S-β	28,000
S-γ	45,000
M	66,000
M-α	82,000
M-β	120,000
M-γ	150,000
Ω	180,000

Gravity levels

Level	Frames per cell	Gravity equivalent (1/256G)
0	21.333	12
20	16	16
40	10.667	24
60	8	32
80	5.333	48
100	4	64
125	3.2	80
150	2.667	96
175	2.286	112
200	2	128
220	1.6	160
240	1.333	192
260	1.143	224
280	1	256 (1G)
300	0.667	384 (1.5G)
325	0.5	512 (2G)
350	0.333	768 (3G)
375	0.25	1024 (4G)
400	0.2	1280 (5G)
420	0.25	1024 (4G)
450	0.333	768 (3G)
500	0.05	5120 (20G)

Master style power is based on level reached and average section time, with a maximum of 30,000 towards the player's overall power.

Dragon Style

Dragon style is designed to be similar to the T.A. Death mode from Tetris The Absolute The Grand Master 2. Thus, it starts at 20G and the timings get faster over time. This style uses the same scoring formula as TGM1, but score has no effect on the grade, which instead increases every 50 levels.

Grade Conditions

Grade	Required Level	Grade	Required Level
10	0	S1	500
9	50	S2	550
8	100	S3	600
7	150	S4	650
6	200	S5	700
5	250	S6	750
4	300	S7	800
3	350	S8	850
2	400	S9	900
1	450	S10	950
M	999

Dragon style power is based on level reached and average section time, with a maximum of 39,000 towards the player's overall power.

Custom Game

The custom game menu provides a highly customizable game in any of the three campaign modes, along with presets that recreate the visuals and mechanics of various classic Tetris games:

• Tetris (Game Boy)
• Tetris (NES, Nintendo)
• Tetris DX
• Tetris (Sega)
• Tetris The Grand Master

See also

• Jstris

Links

• Play Dergoris 99k
• Dergoris 99k GitHub repo