I couldn't find anything for this season, but Zion Williamson had his most points in a game in 2024-25 versus the Kings on February 8, with 40 points.

Interpreted as:

zion most pts in a regular-season game this season

	NAME	PTS	DATE	TM		OPP	MIN	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Zion Williamson Z. Williamson	40	2/8/2025	NOP	@	SAC	28	4	4	2	0	16	21	76.2	0	0		8	11	72.7	77.4	1	3	3	4	+4
2	Zion Williamson Z. Williamson	37	3/4/2025	NOP	@	LAL	26	4	6	1	1	17	23	73.9	0	0		3	6	50.0	72.2	1	3	0	3	+13
3	Zion Williamson Z. Williamson	34	11/1/2024	NOP	vs	IND	37	6	10	2	0	14	20	70.0	1	2	50.0	5	8	62.5	72.3	1	5	3	3	+17
4	Zion Williamson Z. Williamson	33	2/12/2025	NOP	vs	SAC	28	9	7	2	0	13	18	72.2	1	1	100.0	6	9	66.7	75.1	3	6	1	4	+13
5	Zion Williamson Z. Williamson	31	1/27/2025	NOP	@	TOR	27	7	2	0	3	13	18	72.2	0	0		5	8	62.5	72.0	0	7	3	4	-11
6	Zion Williamson Z. Williamson	31	10/29/2024	NOP	@	GSW	30	8	3	0	1	12	19	63.2	1	2	50.0	6	8	75.0	68.8	2	6	7	3	-14
7	Zion Williamson Z. Williamson	30	3/17/2025	NOP	vs	DET	28	6	3	0	2	9	18	50.0	0	0		12	15	80.0	61.0	2	4	3	3	-18
8	Zion Williamson Z. Williamson	29	3/19/2025	NOP	@	MIN	30	5	8	3	0	12	16	75.0	0	0		5	9	55.6	72.6	0	5	3	5	+9
9	Zion Williamson Z. Williamson	29	2/21/2025	NOP	@	DAL	27	7	3	2	0	11	15	73.3	0	0		7	11	63.6	73.1	3	4	3	3	0
10	Zion Williamson Z. Williamson	29	1/29/2025	NOP	vs	DAL	28	6	7	2	0	11	18	61.1	0	1	0.0	7	9	77.8	66.0	4	2	2	1	+7
11	Zion Williamson Z. Williamson	29	11/6/2024	NOP	vs	CLE	29	8	4	1	1	9	18	50.0	0	0		11	13	84.6	61.1	2	6	4	3	-3
12	Zion Williamson Z. Williamson	28	2/5/2025	NOP	@	DEN	27	6	4	2	0	11	19	57.9	0	0		6	9	66.7	61.0	2	4	3	0	-5
13	Zion Williamson Z. Williamson	28	1/25/2025	NOP	@	CHA	26	11	2	1	1	11	20	55.0	0	0		6	8	75.0	59.5	3	8	4	4	-20
14	Zion Williamson Z. Williamson	27	2/27/2025	NOP	@	PHX	31	10	11	0	2	13	17	76.5	0	0		1	4	25.0	72.0	4	6	2	1	+17
15	Zion Williamson Z. Williamson	24	3/2/2025	NOP	@	UTA	29	6	9	2	0	11	18	61.1	0	1	0.0	2	3	66.7	62.1	1	5	1	1	+2
16	Zion Williamson Z. Williamson	24	1/17/2025	NOP	vs	UTA	23	14	6	0	3	11	21	52.4	0	0		2	5	40.0	51.7	8	6	2	4	+5
17	Zion Williamson Z. Williamson	22	3/11/2025	NOP	vs	LAC	33	10	12	0	1	8	13	61.5	0	0		6	6	100.0	70.3	1	9	5	2	+6
18	Zion Williamson Z. Williamson	22	2/23/2025	NOP	vs	SAS	28	9	3	2	2	8	17	47.1	0	0		6	10	60.0	51.4	2	7	1	1	+23
19	Zion Williamson Z. Williamson	22	1/7/2025	NOP	vs	MIN	28	6	4	3	1	9	15	60.0	0	2	0.0	4	9	44.4	58.0	4	2	4	3	+8
20	Zion Williamson Z. Williamson	21	1/14/2025	NOP	@	CHI	24	7	9	0	1	10	14	71.4	0	0		1	4	25.0	66.6	5	2	4	3	+7
21	Zion Williamson Z. Williamson	20	3/13/2025	NOP	vs	ORL	28	8	5	0	0	8	15	53.3	0	0		4	6	66.7	56.7	3	5	2	2	-14
22	Zion Williamson Z. Williamson	20	3/8/2025	NOP	@	HOU	28	2	3	2	0	10	19	52.6	0	0		0	2	0.0	50.3	2	0	4	2	-37
23	Zion Williamson Z. Williamson	20	3/6/2025	NOP	vs	HOU	32	10	3	1	2	5	15	33.3	0	0		10	12	83.3	49.3	4	6	4	3	-18
24	Zion Williamson Z. Williamson	18	2/25/2025	NOP	vs	SAS	29	6	3	1	0	8	15	53.3	0	0		2	3	66.7	55.1	4	2	6	2	+2
25	Zion Williamson Z. Williamson	17	2/10/2025	NOP	@	OKC	26	2	5	1	0	6	11	54.5	0	0		5	9	55.6	56.8	1	1	5	5	-26