Biggest Climbers

The Heat Index says what is hot. Momentum says what is getting hot, fast, before everyone else notices: a daily score for how quickly each tracked game's players, streams, clips, reviews, and YouTube attention are rising, measured over 7 days against the game's own platform.

Which games are rising fastest right now?

As of October 28, 2026, Schedule I is rising fastest overall, with a Momentum score of 90 out of 100 and players +60% over the last 7 days. On Roblox, DOORS 🍬🍭 leads at 77. It depends on the game's own platform: every score below is ranked against games on the same platform, over the same 7 days, from numbers banked daily since October 2026.

Schedule I

Steam

Momentum 90

Not on today's Heat Index board

Players now: 12,205 · +60% in 7 days · yesterday: +81% (context only)

Players +60%Reviews +89

Players: +60% players · 97th percentile among Steam games
Reviews: 89 new reviews, 98% positive · 75th percentile among Steam games

Valheim

Steam

Momentum 79

Heat Index #7 ▼ 2 this week

Players now: 83,982 · +35% in 7 days · yesterday: +56% (context only)

Players +35%YouTube 0%

Players: +35% players · 91st percentile among Steam games
YouTube: review-video views 0% · 46th percentile among Steam games

DOORS 🍬🍭

Roblox

Momentum 77

Not on today's Heat Index board

Players now: 40,700 · +22% in 7 days · yesterday: -18% (context only)

Players +22%Visits +1%

Players: +22% players · 79th percentile among Roblox games
Visits: +1% visits, 61,134,636 gained · 88th percentile among Roblox games
Favorites: +38,357 favorites · 59th percentile among Roblox games

[🎃] RIVALS

Roblox

Momentum 68

Heat Index #2 — no move this week

Players now: 137,012 · -24% in 7 days · yesterday: -19% (context only)

Visits +1%Favorites +657,337

Players: -24% players · 46th percentile among Roblox games
Visits: +1% visits, 143,399,534 gained · 79th percentile among Roblox games
Favorites: +657,337 favorites · 96th percentile among Roblox games

Rust

Steam

Momentum 63

Heat Index #5 ▲ 1 this week

Players now: 88,535 · +10% in 7 days · yesterday: -8% (context only)

Players +10%YouTube 0%

Players: +10% players · 66th percentile among Steam games
YouTube: review-video views 0% · 54th percentile among Steam games

Balatro

Steam

Momentum 62

Not on today's Heat Index board

Players now: 8,781 · +20% in 7 days · yesterday: +14% (context only)

Players +20%Reviews +49

Players: +20% players · 72nd percentile among Steam games
Reviews: 49 new reviews, 94% positive · 42nd percentile among Steam games

[🎃 NEW QUEST] Dress To Impress

Roblox

Momentum 60

Heat Index #8 — no move this week

Players now: 87,019 · +2% in 7 days · yesterday: -6% (context only)

Players +2%Visits +1%

Players: +2% players · 54th percentile among Roblox games
Visits: +1% visits, 56,048,398 gained · 63rd percentile among Roblox games
Favorites: +47,976 favorites · 68th percentile among Roblox games

🎉 [PSX] Pet Simulator 99! 🐾

Roblox

Momentum 59

Not on today's Heat Index board

Players now: 76,328 · +77% in 7 days · yesterday: +6% (context only)

Players +77%Visits 0%

Players: +77% players · 96th percentile among Roblox games
Visits: 0% visits, 9,164,542 gained · 46th percentile among Roblox games
Favorites: +4,873 favorites · 5th percentile among Roblox games

WARDOGS

Steam

Momentum 58

Heat Index #1 — no move this week

Players now: 132,056 · -3% in 7 days · yesterday: +36% (context only)

Stream viewers +64%Players -3%

Players: -3% players · 53rd percentile among Steam games
Streams: 5,249 stream viewers (+64%), 5 streamers · 67th percentile among Steam games
YouTube: review-video views -8% · 54th percentile among Steam games

#10

Hollow Knight: Silksong

Steam

Momentum 58

Not on today's Heat Index board

Players now: 5,692 · -23% in 7 days · yesterday: -22% (context only)

Clips +300%+Players -23%

Players: -23% players · 34th percentile among Steam games
Clips: +300%+ clip views, 38,744 gained · 93rd percentile among Steam games
Reviews: 85 new reviews, 80% positive · 58th percentile among Steam games

#11

Brookhaven 🏡RP

Roblox

Momentum 58

Not on today's Heat Index board

Players now: 361,805 · +4% in 7 days · yesterday: -2% (context only)

Players +4%Favorites +122,883

Players: +4% players · 63rd percentile among Roblox games
Visits: 0% visits, 231,297,864 gained · 29th percentile among Roblox games
Favorites: +122,883 favorites · 86th percentile among Roblox games

#12

[🎃] Adopt Me!

Roblox

Momentum 56

Not on today's Heat Index board

Players now: 206,612 · +36% in 7 days · yesterday: 0% (context only)

Players +36%Favorites +29,367

Players: +36% players · 88th percentile among Roblox games
Visits: 0% visits, 84,853,024 gained · 21st percentile among Roblox games
Favorites: +29,367 favorites · 41st percentile among Roblox games

#13

Murder Mystery 2

Roblox

Momentum 53

Not on today's Heat Index board

Players now: 425,598 · -42% in 7 days · yesterday: +29% (context only)

Visits +1%Favorites +101,578

Players: -42% players · 13th percentile among Roblox games
Visits: +1% visits, 382,002,140 gained · 96th percentile among Roblox games
Favorites: +101,578 favorites · 77th percentile among Roblox games

#14

The Strongest Battlegrounds

Roblox

Momentum 52

Not on today's Heat Index board

Players now: 57,705 · +13% in 7 days · yesterday: -16% (context only)

Players +13%Visits 0%

Players: +13% players · 71st percentile among Roblox games
Visits: 0% visits, 57,615,646 gained · 38th percentile among Roblox games
Favorites: +26,825 favorites · 32nd percentile among Roblox games

#15

Slay the Spire 2

Steam

Momentum 50

Heat Index #6 ▲ 1 this week

Players now: 42,477 · -51% in 7 days · yesterday: -52% (context only)

Stream viewers +113%YouTube +1%

Players: -51% players · 22nd percentile among Steam games
Streams: 1,968 stream viewers (+113%), 1 streamer · 67th percentile among Steam games
YouTube: review-video views +1% · 92nd percentile among Steam games

#16

Fisch 👻 [HORSEMAN]

Roblox

Momentum 44

Not on today's Heat Index board

Players now: 58,065 · -25% in 7 days · yesterday: -18% (context only)

Visits +1%Players -25%

Players: -25% players · 38th percentile among Roblox games
Visits: +1% visits, 28,119,203 gained · 71st percentile among Roblox games
Favorites: +13,730 favorites · 23rd percentile among Roblox games

#17

Enshrouded

Steam

Momentum 44

Heat Index #9 — no move this week

Players now: 78,299 · +29% in 7 days · yesterday: +43% (context only)

Players +29%Stream viewers -84%

Players: +29% players · 78th percentile among Steam games
Streams: 2,037 stream viewers (-84%), 2 streamers · 17th percentile among Steam games
YouTube: review-video views -74% · 8th percentile among Steam games

#18

Stardew Valley

Steam

Momentum 41

Heat Index #10 — no move this week

Players now: 38,433 · -53% in 7 days · yesterday: -53% (context only)

Reviews +197Players -53%

Players: -53% players · 16th percentile among Steam games
Reviews: 197 new reviews, 97% positive · 92nd percentile among Steam games
YouTube: review-video views 0% · 42nd percentile among Steam games

#19

Blox Fruits

Roblox

Momentum 29

Heat Index #3 — no move this week

Players now: 128,780 · -28% in 7 days · yesterday: -29% (context only)

Players -28%Favorites +32,896

Players: -28% players · 29th percentile among Roblox games
Visits: 0% visits, 86,791,208 gained · 13th percentile among Roblox games
Favorites: +32,896 favorites · 50th percentile among Roblox games

#20

Vanguards: 2nd Anniversary

Roblox

Momentum 24

Not on today's Heat Index board

Players now: 14,460 · -66% in 7 days · yesterday: -26% (context only)

Visits 0%Players -66%

Players: -66% players · 4th percentile among Roblox games
Visits: 0% visits, 7,835,939 gained · 54th percentile among Roblox games

Cooling fastest

The same score, pointed the other way: [🎃] Grow a Garden 🌶️ (Momentum 14, players -37% in 7 days) · Vanguards: 2nd Anniversary (Momentum 24, players -66% in 7 days) · Blox Fruits (Momentum 29, players -28% in 7 days). A board that only points up would be marketing, not measurement.

Not enough data yet

Tracked games with no Momentum score this week. No score is published rather than a guessed one.

Wallpaper Engine (Steam): insufficient data: fewer than two tracked signals cleared the bar this week.
Don't Starve Together (Steam): new to our tracking. Not enough history yet: Momentum needs a week of banked data.
Moon Sweepers (Steam): new to our tracking. Not enough history yet: Momentum needs a week of banked data.
Geometry Dash (Steam): insufficient data: fewer than two tracked signals cleared the bar this week.
Project Zomboid (Steam): insufficient data: fewer than two tracked signals cleared the bar this week.
Euro Truck Simulator 2 (Steam): insufficient data: fewer than two tracked signals cleared the bar this week.
Probably Stolen - Cyberpunk Shopkeeper Sim (Steam): new to our tracking. Not enough history yet: Momentum needs a week of banked data.
Terraria (Steam): insufficient data: fewer than two tracked signals cleared the bar this week.
The Outlast Trials (Steam): new to our tracking. Not enough history yet: Momentum needs a week of banked data.
Scam With Your Friends (Steam): new to our tracking. Not enough history yet: Momentum needs a week of banked data.
The Long Dark (Steam): new to our tracking. Not enough history yet: Momentum needs a week of banked data.
ReStory: Chill Electronics Repairs (Steam): new to our tracking. Not enough history yet: Momentum needs a week of banked data.

How Momentum works

Momentum measures how fast a game is heating up, not how hot it already is. Every day we bank the numbers behind the Heat Index: players, Twitch streamers and viewers, clip views, Steam reviews, and YouTube attention. Momentum compares today's bank to the bank 7 days ago, on the same weekday, signal by signal, and ranks each game's change against every other game on its own platform (Steam against Steam, Roblox against Roblox), because the platforms run at completely different scales and audiences surge on weekends. The score is a weighted blend: players count most, then streams, clips, reviews, and YouTube. A game needs real player volume and at least two rising signals to appear here. A signal we do not track for a game is left out of its score, never counted as zero. Stream and clip figures are a daily snapshot taken at about 13:00 UTC, and minimum volume floors apply to every signal, so small games cannot top this board on noise. The one-day change is shown on each card as context only; it is never the score.

Momentum is computed only from data SpawnWatch banks itself, starting October 2026. Rankings are never for sale, no placement is sponsored, and no score is adjusted by hand. If a game is not here yet, it may simply be too new: Momentum needs a week of banked history to say anything honest.

Looking for what is hot right now?

Momentum ranks the climb; the Heat Index ranks the level: today's biggest games on Steam and Roblox, rebuilt daily from live player counts.