A digital artbook containing sketches, selected artwork and developer's commentary for Zero-Sum Heart.

In this digital artbook, we have hand-picked some early sketches and art assets from the game, and share some notes and commentary about the development process!Artbook Content Preview:<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3238050/extras/af7e681413da6cfa26887393e5f3b479.avif?t=1730426914" data-big-src=https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3238050/extras_big/af7e681413da6cfa26887393e5f3b479.avif?t=1730426914 width=800 height=450 />How to access the artbook: Find Zero-Sum Heart in the Steam library, right-click, select &quot;Properties&quot; and choose &quot;find local game files&quot;, and you should see the &quot;ZSH_Artbook&quot; pdf in the folder! Or alternatively, you can find it manually at [Your Steam Library Folder]/steamapps/common/Zero-Sum Heart.

Zero-Sum Heart Artbook

&quot;I&quot; make a deal with the witch to give up my heart, in exchange for love – from everyone. Is it worth it if losing my heart means gaining *his*? In this short visual novel, make choices and answer the question: is love a zero-sum game?

<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/9f41de37409f5250104b1b46e185a799.poster.avif?t=1729309887" width=600 height=220 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/9f41de37409f5250104b1b46e185a799.webm?t=1729309887" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/9f41de37409f5250104b1b46e185a799.mp4?t=1729309887" type="video/mp4"></video>Romantic, fantastical, and eerie, Zero-Sum Heart is a coming-of-age story about love. <video class="bb_img" autoplay muted loop playsinline crossorigin="anonymous" poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/3d2ce7a05430a7caa42f29b5b4c27e34.poster.avif?t=1729309887" width=550 height=132 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/3d2ce7a05430a7caa42f29b5b4c27e34.webm?t=1729309887" type="video/webm; codecs=vp9"></video>Enter a magical boarding school on our protagonist's eighteenth birthday as she makes a monumental decision and derails her life.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/93cbfe07e572652e546d91843c628377.poster.avif?t=1729309887" width=600 height=244 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/93cbfe07e572652e546d91843c628377.webm?t=1729309887" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/93cbfe07e572652e546d91843c628377.mp4?t=1729309887" type="video/mp4"></video> A ritual sacrifice got her everything she ever wanted: an adoring crowd (faceless), a newfound power (dangerous), and a whirlwind romance (one-sided). But without a heart in her chest, how could she love anyone back? Does she even need to? <video class="bb_img" autoplay muted loop playsinline crossorigin="anonymous" poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/41042265a3a7e0b10148d1d6c887eb9d.poster.avif?t=1729309887" width=550 height=132 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/41042265a3a7e0b10148d1d6c887eb9d.webm?t=1729309887" type="video/webm; codecs=vp9"></video><ul class="bb_ul"><li>A short 2-hour story with multiple endings, blending genres of romance, teen drama, thriller/horror, and magical realism.</li><li>Vibrant and psychedelic hand-drawn illustrations that blur the lines between reality and fantasy.</li><li>A witchy, sinister, and groovy original soundtrack.</li><li><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/f50b7b6662aeba654a385c2ba39ddf11.poster.avif?t=1729309887" width=600 height=334 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/f50b7b6662aeba654a385c2ba39ddf11.webm?t=1729309887" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2955130/extras/f50b7b6662aeba654a385c2ba39ddf11.mp4?t=1729309887" type="video/mp4"></video></li></ul>

Zero-Sum Heart Demo

&quot;I&quot; make a deal with the witch to give up my heart, in exchange for love— from everyone. Is it worth it if losing my heart means gaining *his*? ————————————————————————— In this short visual novel, make choices and answer the question: is love a zero-sum game?

<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/2e0cccf19a23fcb1656cb8f22057f33b.poster.avif?t=1758774870" width=780 height=370 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/2e0cccf19a23fcb1656cb8f22057f33b.webm?t=1758774870" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/2e0cccf19a23fcb1656cb8f22057f33b.mp4?t=1758774870" type="video/mp4"></video>Romantic, fantastical, and eerie, Zero-Sum Heart is a coming-of-age story about love. <video class="bb_img" autoplay muted loop playsinline crossorigin="anonymous" poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/3d2ce7a05430a7caa42f29b5b4c27e34.poster.avif?t=1758774870" width=550 height=132 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/3d2ce7a05430a7caa42f29b5b4c27e34.webm?t=1758774870" type="video/webm; codecs=vp9"></video>Enter a magical boarding school on our protagonist's eighteenth birthday as she makes a monumental decision and derails her life. <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/bb09acebc94aa57c019aa938d0761829.poster.avif?t=1758774870" width=780 height=436 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/bb09acebc94aa57c019aa938d0761829.webm?t=1758774870" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/bb09acebc94aa57c019aa938d0761829.mp4?t=1758774870" type="video/mp4"></video>A ritual sacrifice got her everything she ever wanted: an adoring crowd (faceless), a newfound power (dangerous), and a whirlwind romance (one-sided). But without a heart in her chest, how could she love anyone back? Does she even need to?<video class="bb_img" autoplay muted loop playsinline crossorigin="anonymous" poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/41042265a3a7e0b10148d1d6c887eb9d.poster.avif?t=1758774870" width=550 height=132 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/41042265a3a7e0b10148d1d6c887eb9d.webm?t=1758774870" type="video/webm; codecs=vp9"></video><ul class="bb_ul"><li>A short 2-hour story with multiple endings, blending genres of romance, teen drama, thriller/horror, and magical realism.</li><li>Vibrant and psychedelic hand-drawn illustrations that blur the lines between reality and fantasy.</li><li>A witchy, sinister, and groovy original soundtrack.</li></ul><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/5090c6c8e2c7f71fc5855d6fa8ae6031.poster.avif?t=1758774870" width=780 height=436 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/5090c6c8e2c7f71fc5855d6fa8ae6031.webm?t=1758774870" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/5090c6c8e2c7f71fc5855d6fa8ae6031.mp4?t=1758774870" type="video/mp4"></video><video class="bb_img" autoplay muted loop playsinline crossorigin="anonymous" poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/744f927bea6ffacc962e0908d9500f25.poster.avif?t=1758774870" width=550 height=132 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2954920/extras/744f927bea6ffacc962e0908d9500f25.webm?t=1758774870" type="video/webm; codecs=vp9"></video>Zero-Sum Heart contains visual depictions of self-mutilation, violence, and gore, although not particularly graphic due to the non-realistic art style. The story also contains limited depictions of stalking, harrassment, abuse, toxic familial and romantic relationships, murder, and suicide. Please note that due to the premise of the story, any romantic interaction the protagonist initiates with characters under the influence of magic might involve dubious consent.If any of the above might be triggering for you, caution is advised while playing the game.