The Big Day has arrived. Blast your way through the apocalypse in this bloody pixel-art ARPG, riding through the ruins of the last days on Earth following a devastating zombie outbreak. Uncover the truth behind the crisis, find your missing daughter, and blow holes in every zombie who crosses your path!
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Regional prices
All Steam store regions, converted to USD at today's exchange rate, compared with the US price. Lowest is the lowest price SteamRaw has recorded for that region.
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Price history, US store (USD)
Date
Price
Regular
Discount
2026-09-11 21:21 UTC
$9.99
$9.99
DLC
AppID
Release
Price
No DLC known for this app.
Branches
Branch
Build ID
Description
Updated
Password
public
3168520
2018-09-29 16:01 UTC
Depots
Depot
Name
OS
Size
Download
Public manifest
Notes
757631
2.50 GB
230.33 MB
4346088255984748904
757632
windows · 64
1.29 GB
388.58 MB
5052226228874365800
757633
macos · 64
1.31 GB
392.06 MB
3798928505425973285
A build is one published version of the game's files on a branch. Steam assigns a new build ID every time the developer pushes an update, so this list is the update history of the app. The files inside a build (depot manifests) are only readable with an account that owns the game, which SteamRaw does not have yet, so build contents are not shown.
Build ID
Branch
Updated
First seen
3168520
public
2018-09-29 16:01 UTC
6 hours ago
Every appinfo change SteamRaw has observed, grouped by changelist. Tags, features, languages, builds, depots, prices and any other key Steam publishes. Tracking since 2026-09-11 21:21 UTC.
No changes recorded since SteamRaw first saw this app. Every future PICS change will be listed here.
2018-10-02 07:25 UTC · Community Announcements · Zodiac Interactive
https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/31452004/53aa58390a9de6dcf160f946680b10f0fae864c0.png Hey everyone, We’re very pleased to finally release Big Day into Early Access on Steam. The development team at Sonic Shield have been working very hard on this, and we’re excited to invite players to experience what we’ve cooked up! As an Early Access release, expect some rough edges going in. There are issues we’re already aware of, and there’ll be ones that we haven’t come across yet – so please don’t be afraid to sound off here or in the Steam discussion forums. Please a
2018-09-28 09:10 UTC · Community Announcements · Zodiac Interactive
https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/31452004/efe2acac6eee3259ddaa1460f5e1a8f7db07d8d2.jpg Greetings! Big Day has now passed the Steam review process and is ready for launch! The amended release date is October 2nd 2018. Once again, apologies to anyone who was anticipating gunning down the zombie hordes this week. Luckily, there’s not much longer to wait before the Big Day arrives! Thanks to everyone for their patience and support!
2018-09-25 04:34 UTC · Community Announcements · Zodiac Interactive
https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/31452004/ecc547b0c56f2c750330547e2c395d012b28cdc8.jpg Hi everyone, As you know, we had scheduled the release of BIG DAY for today, 25th September. To meet this launch day, we submitted the release build for Steam review on 19th September. This process normally takes just a few days; however Steam have not yet completed their review. Unfortunately, this means we are unable to release BIG DAY today. The game is in the review process now, and we will update you as soon as possible once we are given the green light to release. A
Full appinfo as delivered by Steam PICS, changenumber 34351876. Also at /api/app/757630/raw.
